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| Member # | Family Name | Town / Region | Country | Dates |
| 411 | La(e)mmle | Laupheim, Bavaria | Germany | 1800 - 1942 |
| 400 | Labovich, Morris | Kaunas | Lithuania | |
| 920 | Lachovitsky | Grodno | Belarus | < 1910 |
| 920 | Lachovitsky | London, East End | England | 1910 > |
| 99 | Lacob | Ponevez | Lithuania | 1880 |
| 1161 | Ladden / Ladino | Svenska | Lithuania | 1890 |
| 594 | Lader / Levy | Kalisz | Poland | 1870s |
| 828 | Laemmle | Michelfeld Baden | Germany | 19th C |
| 324 | Lam | Tarnobrzeg / Dzikow | Poland | |
| 163 | Lambe | Vilnius | Lithuania | < 1900 |
| 11 | Lambert | Kletz | Belarus | 1905 |
| 399 | Lambert | Minsk | Belarus | 1890 - 1900 |
| 11 | Lambert | London | England | |
| 421 | Lambert | |||
| 11 | Lambert / Lempert | Kletz | Belarus | |
| 194 | Lamm | Vilnius | Lithuania | 1800 - 1900 |
| 9 | Landa | Leeds | England | |
| 697 | Landau, Harry | Bloemfontein | South Africa | c 1908 |
| 59 | Landauer | Buttenhausen, Wurtenberg | Germany | |
| 446 | Lande | Kaunas | Lithuania | |
| 1213 | Landewirst / Landgewurz | Brody | Poland | 1860 - 1929 |
| 283 | Landsberg | Poznan | Poland | |
| 532 | Landy | Vienna | Austria | 1938 |
| 532 | Landy | Karlov Vary | Czech Republic | 1938 |
| 163 | Landy | Vilnius | Lithuania | < 1900 |
| 532 | Landy | Lwowek | Poland | 1938 |
| 532 | Landy | Brody | Ukraine | 1890 |
| 532 | Landy | Ukraine | ||
| 556 | Lang | Subotica | Yugoslavia | |
| 262 | Langenbach, Seligman Isaac | Frankfurt-am-Main | Germany | 1747 |
| 624 | Langsam | London | England | |
| 1087 | Langton | Manchester / London | England | 1930 > |
| 1 | Langworst | New York | USA | 1920 > |
| 679 | Lankier | London | England | < 1880 - 2000 |
| 679 | Lankier | Poland | < 1880 - 2000 | |
| 657 | Lantyer | London | England | 1850s |
| 657 | Lantyer | Netherlands | ||
| 54 | Lapidus | Shilal, Kovno | Lithuania | 1873 |
| 83 | Lapin | London | England | |
| 83 | Lapin | Kadan, Vilna | Lithuania | < 1906 |
| 83 | Lapin | Volkomee, Kovno | Lithuania | < 1906 |
| 83 | Lappin | Ukmerge | Lithuania | < 1902 |
| 413 | Laski | Sompolno | Poland | < 1900 |
| 874 | Lasky | London | England | 1900 > |
| 819 | Lasky | Sheffield | England | 1870s |
| 44 | Lasky | Lomza | Poland | |
| 226 | Lasky | Roszan | Poland | c 1905 |
| 874 | Lasky | Sompolna | Poland | < 1900 |
| 86 | Lasky | Poland | ||
| 501 | Lasry | Gibralter | 1900 | |
| 591 | Lasser | Lithuania | 1920s | |
| 528 | Last | Daleham, Suffolk | England | 1755 |
| 520 | Lateman / Leitman | Vitebsk | Belarus | 1905 > |
| 46 | Latimer / ?Lealtad | Islington / Clerkenwell | England | 1770 - 1830 |
| 14 | Laubheim | Lower Franconia | ||
| 310 | Lauer | Vienna | Austria | |
| 310 | Lauer | Galicia | ||
| 310 | Lauer | Brody | Ukraine | |
| 131 | Laurence | London | England | |
| 458 | Lautman | Galicia | 1896 | |
| 29 | Lavenburg | Brighton | England | 1880s |
| 29 | Lavenburg | London | England | 1880s |
| 160 | Lawrence | Glasgow | Scotland | 1950s |
| 1114 | Lawrence | |||
| 1063 | Lawson | London | England | < 1930 |
| 1087 | Lawton | London / Brighton | England | 1930 > |
| 1157 | Lawton | USA | 1950 > | |
| 17 | Lazar | Uzhgorod | Ukraine | 1880s |
| 332 | Lazarus | Bath | England | 1870s |
| 1117 | Lazarus | Birmingham | England | 1890s |
| 48.2 | Lazarus | Bristol | England | 1860s |
| 60 | Lazarus | Gainsborough | England | late 18th C |
| 15 | Lazarus | Lincoln | England | 19th C |
| 23 | Lazarus | London | England | |
| 48.2 | Lazarus | London | England | 1869 - 1877 |
| 51 | Lazarus | London | England | |
| 60 | Lazarus | London | England | 19th C |
| 131 | Lazarus | London | England | |
| 131 | Lazarus | London | England | |
| 332 | Lazarus | London | England | 1870s |
| 637 | Lazarus | London | England | 1768 - 1945 |
| 1190 | Lazarus | London | England | 19th C |
| 450 | Lazarus | London, E1 | England | 1932 |
| 704 | Lazarus | London, Whitechapel | England | 1840 |
| 658 | Lazarus | Manchester | England | < 1970 |
| 332 | Lazarus | Portsmouth | England | 1870s |
| 637 | Lazarus | Rochford, Essex | England | 1780 - 1827 |
| 183 | Lazarus | Slough | England | 1865 > |
| 183 | Lazarus | Uxbridge | England | 1844 - 1870 > |
| 131 | Lazarus | Paris | France | |
| 539 | Lazarus | Berlin | Germany | |
| 658 | Lazarus | Kassel | Germany | |
| 131 | Lazarus | Dublin | Ireland | |
| 48.2 | Lazarus | Naumisties | Lithuania | 1830s |
| 48.2 | Lazarus | Neustadt | Prussia | |
| 48.2 | Lazarus | Johannesburg | South Africa | 1890 - 1950 |
| 48.2 | Lazarus | Kimberley | South Africa | 1877 - 1890 |
| 82 | Lazarus, Joseph Lyon | London | England | 1878 |
| 672 | Le(e)uw | Monnickendam | Netherlands | < 1811 - 1883 |
| 886 | Leader | London | England | 1840 - 1920 |
| 672 | Lealtad | London, Aldgate | England | 1730 > |
| 672 | Lealtad | Livorno | Italy | late 17th C |
| 672 | Lealtad | Madrid | Spain | late 17th C |
| 672 | Lealtad / Lealtaõ | Amsterdam | Netherlands | 18th C |
| 672 | Lealtad / Lealter | London | England | 1710 - 1850 |
| 562 | Leanse | Musninkai | Lithuania | 1876 |
| 24 | Leapman | UK | ||
| 400 | Lebersovitz | Ustilug | Ukraine | |
| 45 | Leboff | France | 1860 - 2000 | |
| 45 | Leboff | Russia | 1860 > | |
| 45 | Leboff | UK | 1860 - 2000 | |
| 45 | Leboff | USA | 1860 - 2000 | |
| 333 | Lebovitz | Austria-Hungary | 1800s | |
| 595 | Lebrecht | |||
| 603 | Lecheff | Gomel | Belarus | 1903 |
| 62 | Lechner | Szczecin | Poland | 1890s - 1930s |
| 62 | Lechner | Chernovtsky | Ukraine | 1800s - 1870s |
| 62 | Lechner | Chernovtsky | Ukraine | |
| 398 | Lee | Leeds | England | 1890 > |
| 309 | Lee | London | England | c 1887 |
| 908 | Lee | London, Mile End | England | 1800s |
| 422 | Leek | Groningen | Netherlands | 1880s |
| 11 | Lefcovitch | London | England | c 1970 |
| 679 | Lefcovitch | London | England | 1900 > |
| 333 | Lefcovitch | Poland | 1800s | |
| 631 | Leginsky | Poland | ||
| 520 | Lehmann | Gunzenhausen | Germany | 1939 |
| 520 | Lehmann | Neustedt | Germany | 1930s |
| 473 | Leib | Portsea | England | 1767 |
| 315 | Leiberman | Sakiai | Lithuania | 1939 |
| 80 | Leibovitch | France | ||
| 80 | Leibovitch | Russia | ||
| 219 | Leibrich | Gadesbusch, Meglenburg | Germany | early 19th C |
| 988 | Leibson | Virbalis | Lithuania | mid 19th C |
| 801 | Leipp | London | England | 1870 > |
| 1063 | Leipson | London | England | < 1930 |
| 328 | Leizerzon / Leisersohn | Galati / Focsani | Romania | 19th C - 1940s |
| 760 | Lemel | |||
| 562 | Lenschner | Musninkai | Lithuania | 1875 |
| 598 | Leon | London | England | |
| 1 | Leon, Melina | Bristol / London | England | 1840 > |
| 1087 | Leon, Moss / Rachel | Manchester | UK | 1920 > |
| 666 | Lerman / Lermon | Kiblic | Ukraine | 1910 |
| 261 | Lerner | Israel | 1910 | |
| 261 | Lerner | Warszawa | Poland | 1880 |
| 261 | Lerner | South America | ||
| 261 | Lerner | USA | 1910 | |
| 697 | Lerner, Joseph & Zippora | Zhitomir | Ukraine | |
| 551 | Les(s)er | London | England | 1831 > |
| 117 | Leschinski | Porozow | Belarus | 1800 > |
| 117 | Leschinsky | Pordzow | Belarus | 1700 - 1942 |
| 117 | Leschinsky | Svisloch / Porozow / Bialystok | Belarus | |
| 178 | Leschinsky | Romania | ||
| 9 | Leslie | London | England | |
| 16 | Less | Amsterdam | Netherlands | 1863 |
| 398 | Lesser | London / Birmingham | England | 19th C |
| 874 | Lesser | Reading | England | 1900 > |
| 398 | Lesser | Bavaria | Germany | 18th C |
| 202 | Lesser | Czestochowa | Poland | 1880 - 1930 |
| 203 | Lesser | Lissa or Posen | Poland | 1860 - 1873 |
| 44 | Lesser | Lomza | Poland | |
| 874 | Lesser | Sompolna | Poland | < 1900 |
| 203 | Lesser | Moritz | Treptow | 1856 - 1927 |
| 24 | Lesser | UK | ||
| 531 | Letwyen | Tartu | Estonia | 1850s |
| 6 | Letzter | Galitzia | Poland | 1843 - 1887 |
| 672 | Leuw | Amsterdam | Netherlands | 1883 - 1920 |
| 322 | Leven | Vilnius | Lithuania | < 1894 |
| 237 | Levene | Austria | ||
| 105 | Levene | London | England | |
| 322 | Levene | London | England | 1894 - 1900 |
| 89 | Levene | Vilnius | Lithuania | c 1840 |
| 719 | Levengerg | Germany | ||
| 879 | Levensohn | London, Stepney / Whitechapel | England | 1906 > |
| 879 | Levensohn | Russia | 1880 | |
| 354 | Levenson | Poland | < 1890 | |
| 31 | Levenston | Glasgow | Scotland | |
| 31 | Levenston | |||
| 968 | Leventhal | Bessarabia | < 1913 | |
| 318 | Leventhal | Jekabpils | Latvia | < 1891 |
| 400 | Leventhall, Barnett | Jekabpils | Latvia | |
| 585 | Levey | Newcastle | England | c 1880 |
| 398 | Levey | Whitechapel / Liverpool | England | 1700 > |
| 473 | Levi | London | England | 1799 |
| 886 | Levi | London | England | 1840 - 1930 |
| 416 | Levi | Plymouth | England | 1855 |
| 332 | Levi | Portsmouth | England | 1880 |
| 864.1 | Levi | Portsmouth | England | 1740s > |
| 29 | Levi | England | ||
| 1071 | Levi | Lichenroth / Birstein | Germany | 1700 - 1936 |
| 864.1 | Levi | Weisbaden | Germany | < 1740s |
| 1157 | Levi | Thessaloniki | Greece | 19th C - 20th C |
| 634 | Levi / Levy | London, East End | England | 1840s > |
| 634 | Levi / Levy | Poland | < 1840s | |
| 15 | Levi / Levy | |||
| 64 | Levi(e) | Hoerstgen, Rhineland | Germany | 1745 - 1762 |
| 864.1 | Levi, Hermann | Worms | Germany | 1844 |
| 1255 | Levi, Moses | London, Lambeth | England | < 1750 |
| 1255 | Levi, Moses | Frankfurt-am-Main | Germany | 1733 > |
| 1255 | Levi, Moses | Haverford West | Wales | 1750 - 1799 |
| 1255 | Levi, Samuel | London, Lambeth | England | < 1750 |
| 1255 | Levi, Samuel | Frankfurt-am-Main | Germany | 1730 > |
| 1255 | Levi, Samuel | Haverford West | Wales | 1750 - 1812 |
| 97 | Levie | London | England | |
| 64 | Levie (Silverberg) | Nieuw Beijerland | Netherlands | 1814 |
| 672 | Levie, Abram | Schermerhorn in Waterland | Netherlands | late 18th C |
| 105 | Levien | England | 18th C > | |
| 607 | Levin | Usion / Yrzlany (?) | Belarus | |
| 672 | Levin | London / Stoke / Manchester | England | 1875 - 1910 |
| 672 | Levin | Schleswig | Germany | 1848 - 1875 |
| 294 | Levin | Vilnius | Lithuania | 1920s - 1930s |
| 992 | Levin / Levine | Sheffield | England | 1900 > |
| 992 | Levin / Levintov | Vilijampole (Slobodka) | Lithuania | 1800s |
| 776 | Levin(e) | Riga | Latvia | 1880 |
| 776 | Levin(e) | Jurbarkas | Lithuania | 1864 |
| 294 | Levin, Abram (Sunny) | South Africa | 1910s - | |
| 294 | Levin, Harry | Johannesburg | South Africa | 1900s > |
| 294 | Levin, Solomon Noah | Liverpool | England | 1904 - 1929 |
| 294 | Levin, Solomon Noah | Merthyr Tydfil | Wales | 1880s - 1904 |
| 699 | Levine | Gruzdziai | Lithuania | < 1941 |
| 89 | Levine | Vilnius | Lithuania | c 1840 |
| 590 | Levine | |||
| 399 | Levine, Fanny | Russia | 1890 - 1900 | |
| 6 | Levinshtein | Berdichev | Ukraine | |
| 458 | Levisohn | Hessen / Kassel | Germany | c 1885 |
| 10 | Levisohn, Levi | Hessen, Cassel | Germany | 1830 > |
| 274 | Levitan | Svienciany | Poland / Lithuania | 1918 |
| 256 | Levitt | Vitebsk | Belarus | 1895 |
| 551 | Levy | Melbourne | Australia | 1871 - 1873 |
| 1063 | Levy | Eastern Europe | < 1906 | |
| 311 | Levy | Birmingham | England | 1886 |
| 551 | Levy | Bristol | England | |
| 44 | Levy | London | England | |
| 243 | Levy | London | England | 1830 > |
| 267 | Levy | London | England | 1835 |
| 471 | Levy | London | England | 1850 - 1900 |
| 533 | Levy | London | England | 1950 |
| 551 | Levy | London | England | 1797 - 1907 |
| 554 | Levy | London | England | 1772 |
| 583 | Levy | London | England | |
| 625 | Levy | London | England | |
| 628 | Levy | London | England | < 1800 > |
| 645 | Levy | London | England | 1841 |
| 704 | Levy | London | England | 1860 |
| 929 | Levy | London | England | 1800 > |
| 932 | Levy | London | England | 1800 - 1912 |
| 1190 | Levy | London | England | 19th C |
| 1247 | Levy | London, Bishopsgate | England | 1851 |
| 1265 | Levy | London, Whitechapel | England | 19th C |
| 68 | Levy | London, Woolwich | England | 1780 - 1860 |
| 714 | Levy | Berlin | Germany | c 1877 |
| 14 | Levy | Birnbaum | Germany | |
| 11 | Levy | Jonava | Lithuania | 1875 |
| 54 | Levy | Kaunus | Lithuania | |
| 204 | Levy | Korotosszyn | Poland | 1893 |
| 11 | Levy | Lodz | Poland | c 1900 |
| 91 | Levy | Makow Mazowiecki | Poland | < 1888 |
| 14 | Levy | Myedzichod | Poland | |
| 268 | Levy | Piock, Drobnin | Poland | 1891 |
| 43 | Levy | Poznan | Poland | 1841 |
| 123 | Levy | Tarnow | Poland | 1860 - 1880 |
| 507 | Levy | Wroclaw | Poland | |
| 471 | Levy | Scotland | 1850 - 1900 | |
| 551 | Levy | Kimberley | South Africa | 1888 |
| 551 | Levy | Dallas | USA | 1928 - 1951 |
| 551 | Levy | Denver | USA | 1918 - 1925 |
| 551 | Levy | New York | USA | 1892 |
| 551 | Levy | Oakland, CA | USA | 1881 - 1891 |
| 551 | Levy | Philadelphia | USA | 1893 - 1901 |
| 551 | Levy | Pittsburg | USA | 1901 - 1970 |
| 551 | Levy | Sacramento, CA | USA | 1889 - 1893 |
| 551 | Levy | San Francisco | USA | 1891 - 1930 |
| 551 | Levy | San Jose, CA | USA | 1873 - 1881 |
| 872 | Levy | Upina / Skudvic | 1885 | |
| 148 | Levy / Leader | London, Hackney | England | 1907 > |
| 148 | Levy / Leader | Kalisz | Poland | 1880 - 1907 |
| 398 | Levy / Levi | Belarus | < 1900 | |
| 398 | Levy / Levi | Leeds | England | 1890 > |
| 51 | Levy Green | London | England | early 19th C |
| 23 | Levy, Aaron | London | England | |
| 1 | Levy, Aaron (Dayan) | London, Whitechapel | England | 1811 - 1976 |
| 988 | Levy, Abraham | Manchester | England | mid 19th C |
| 672 | Levy, Abraham | Emden | Germany | 1738 > |
| 988 | Levy, Abraham | Prussia | early 19th C | |
| 10 | Levy, Amelia | London / Yarmouth | England | 1850 > |
| 51 | Levy, Angel | London | England | |
| 86 | Levy, Barnett | London | England | 1787 - 1856 |
| 51 | Levy, Daniel | London | England | |
| 23 | Levy, Eliezer | London, Woolwich | England | |
| 15 | Levy, Gershon | Dorbyan | Lithuania | 19th C |
| 10 | Levy, Godfrey & Winifred | Falmouth, Cornwall | England | 1916 - 1917 |
| 785 | Levy, Henry | London, Whitechapel | England | 1825 - 1910 |
| 86 | Levy, Hyam | London | England | 1820 - 1895 |
| 54 | Levy, Israel | Jonava | Lithuania | 1900 |
| 1 | Levy, Israel (Rev) | Hull | England | 1870 - 1910 |
| 82 | Levy, Jacob | London, St Lukes | England | |
| 51 | Levy, Joel | London | England | |
| 264 | Levy, Joseph | London | England | < 1780 |
| 785 | Levy, Joseph | London, Upper Clapton | England | 1875 - 1945 |
| 785 | Levy, Joseph | London, Whitechapel | England | 1789 - 1892 |
| 41 | Levy, Julia | Breslau | Germany | |
| 929 | Levy, Leah | London | England | < 1861 > |
| 23 | Levy, Lewis | London | England | |
| 1 | Levy, Loebel | Lezno | Germany | 1770 > |
| 11 | Levy, Louis | Lodz | Poland | |
| 60 | Levy, Lyon | London | England | 1800 - 1870 |
| 785 | Levy, Michael | London, Whitechapel / St.Geo. in E. | England | 1847 - 1938 |
| 60 | Levy, Mordecai | London | England | 1800s |
| 929 | Levy, Moses | London | England | < 1854 > |
| 11 | Levy, Pauline | Lodz | Poland | |
| 82 | Levy, Reuben Andreas | Netherlands | ||
| 82 | Levy, Reuben Andreas | 1780 | ||
| 10 | Levy, Samuel & Esther | London SE14 | England | 1917 |
| 210 | Levy, Saul | London, Whitechapel | England | 1830 |
| 43 | Levy, Simon | Manchester | England | |
| 6 | Lewenstein | Berdichev | Ukraine | 1855 - 1893 |
| 584 | Lewenzau | Krasnik | Poland | 1942 |
| 230 | Lewin | Oshmyany | Belarus | < 1885 |
| 332 | Lewin | Brighton | England | 1830 |
| 332 | Lewin | London | England | 1830 |
| 359 | Lewin | London | England | 1875 - 1910 |
| 230 | Lewin | Berlin | Germany | 1885 - 1942 |
| 595 | Lewin | |||
| 359 | Lewin / Levin | Wrzesnia | Poland | 1840 - 1870 |
| 78 | Lewis | Birmingham | England | 1938 |
| 29 | Lewis | London, East End | England | 1880s |
| 724 | Lewis | Manchester | England | 1920 - 1970 |
| 999 | Lewis | San Francisco | USA | 1908 > |
| 78 | Lewis, Louis | Birmingham | England | |
| 535 | Lewis, Morris & Annie | Leeds | England | 1886 - 1948 |
| 535 | Lewis, Morris & Annie | Kaunas | Lithuania | < 1886 |
| 78 | Lewis, Renee | Birmingham | England | |
| 241 | Lewis, Robert | Manchester | England | 1780s |
| 78 | Lewis, Sidney | Birmingham | England | |
| 1009 | Lewison | London | England | 1850 - 1900 |
| 1009 | Lewison | Jekabpils | Latvia | 1800 > |
| 1009 | Lewison | Jekabpils | Latvia | 1800 > |
| 1009 | Lewison | Russia | 1800 > | |
| 1009 | Lewison | South Africa | 1850 - 1926 | |
| 26 | Lewkowicz | Tomaszow | Poland | |
| 26 | Lewkowicz | Ujazd | Poland | |
| 48.1 | Lewy | Berlin | Germany | 1840 - 1943 |
| 48.1 | Lewy | Miedzychod | Poland | 1800s |
| 672 | Lialter | London, Aldgate / Mile End | England | 1800 - 1890 |
| 672 | Lialter | Walthamstow, Essex | England | 1885 - 1917 |
| 459 | Libenthal | Biala (prov) | Poland | |
| 459 | Libenthal | Miedzyrzec | Poland | |
| 831 | Liber | Paris | France | c 1891 |
| 311 | Lichtenstein | Hull | England | 1890 |
| 311 | Lichtenstein | Manchester | England | 1890 |
| 411 | Lichtenstein | Gross Rohrheim, Hesse | Germany | 18th C > |
| 87 | Lichtman | Vienna | Austria | 1940 |
| 458 | Licker | Podgorze | Poland | 1880s |
| 518 | Lidral / Ledda | Warszawa | Poland | |
| 226 | Lieberman | Tarnow | Poland | 1938 |
| 939 | Lieberman, Harry | Poland | < 1919 | |
| 939 | Lieberman, Harry | California | USA | 1919 > |
| 106 | Liebman | Usciesco, Galacia | Ukraine | c 1930s |
| 637 | Liebmann | Berlin | Germany | 17th C |
| 200 | Liebzeger | Lodz | Poland | 1876 - 1906 |
| 58 | Lifman | Krekinova | Lithuania | |
| 316 | Lifshiz | Svisloc, Volkovysk | Belarus | c 1890 |
| 258 | Lightman | Lvov | Ukraine | |
| 354 | Lilienthal | Biala | Poland | |
| 354 | Lilienthal | Miedzyrzec Podlaski | Poland | 1880 > |
| 498 | Limberg | |||
| 100 | Lindenbaum | Rzeszow | Poland | 19th C |
| 1117 | Lindenfield | Birmingham | England | 1860 > |
| 547 | Linder | Satoraljanjhely | Hungary | 1939 |
| 245 | Linder | Kolomyya | Ukraine | 1940 |
| 37 | Linderman | Plock | Poland | 19th C |
| 29 | Lindo | Australia | 19th C - 20th C | |
| 596 | Lindo | London | England | 1812 |
| 29 | Lindo | England | 19th C | |
| 663 | Linke | Czech Republic | 20th C | |
| 663 | Linke | South Wales | Wales | 19th C - 20th C |
| 1 | Links | Vienna | Austria | < 1945 |
| 1 | Links | Glasgow | Scotland | 1880s > |
| 1 | Links | Berezhany / Zbarazh | Ukraine | 19th C |
| 421 | Lion | |||
| 545 | Lipanski | Kursenai | Lithuania | 1941 |
| 604 | Lipman | London | England | c 1820 |
| 633 | Lipman | London | England | 1909 > |
| 1271 | Lipman | London, Aldgate | England | 1800 - 1870 |
| 349 | Lipman | London, East End | England | |
| 901 | Lipman, Joseph | Manchester, Cheetham | England | 1879 |
| 901 | Lipman, Walter | London, Hampstead | England | 1910 |
| 3 | Lipper | Jaroslaw | Poland | 19th C |
| 11 | Lipschitz | Kaunus | Lithuania | |
| 208 | Lipschitz | Siauliai / Kusenai | Lithuania | |
| 273 | Lipschitz | Suwalki | Poland | 1941 |
| 11 | Lipschutz | Kaunus | Lithuania | c 1905 |
| 11 | Lipschutz | St Louis, MI | USA | c 1946 |
| 38 | Lipsitz | Latvia | ||
| 884 | Lipsman | Bialystok | Poland | 1870 |
| 884 | Lipsman | Sastavya | Russia | 1870 |
| 884 | Lipsman | Kamenets Podolsky | Ukraine | 1870 |
| 1037 | Lismann | Gelnhausen | 1800 | |
| 1159 | Liss | London, Whitechapel / Mile End | England | 1895 > |
| 928 | Liss, Pinchus | Lipno | Poland | c 1900 |
| 54 | Lissa / Lees | Sunderland | England | |
| 54 | Lissa / Lees | New Zealand | ||
| 54 | Lissa / Lees | Poland | ||
| 751 | Litowitz | Vilkaviskis | Lithuania | 1850 |
| 531 | Litvin(ne) | Tartu | Estonia | 1850s |
| 539 | Livingston | New York | USA | |
| 1 | Livingstone | Nairn | Scotland | 1900 > |
| 1087 | Lobel, Michael / Bella | Manchester | England | 1940 > |
| 17 | Lobl | Kuttenplan | Czech Republic | 1750 - 1812 |
| 199 | Lockspeiser | London | England | 19th C - 20th C |
| 199 | Lockspeiser | London | England | 19th C - 20th C |
| 199 | Lockspeiser | Lubno, Galicia | Poland | 19th C |
| 199 | Lockspeiser | Czernowitz | Ukraine | 1870 - 2000 |
| 539 | Loeb | Chicago | USA | |
| 1037 | Loewenthal | Schierstein, Wiesbaden | Germany | 1800 |
| 1157 | Loewenthal | Elblag | Poland | < 1939 |
| 17 | Loewith | Plzen | Czech Republic | 1938 |
| 48.1 | Loewy | Berlin | Germany | 1840 - 1943 |
| 86 | Loewy | Germany | ||
| 86 | Loewy | Wroclaw | Poland | 1800 - 1917 |
| 17 | London | Ungvar | Hungary | 1860 |
| 17 | London | Uzhgorod | Ukraine | 1850 - 1914 |
| 3 | Lopatin | Visotsk | Ukraine | 19th C |
| 3 | Lopatin | Wysock | Ukraine | |
| 70 | Lopes | London | England | |
| 70 | Lopes | Netherlands | ||
| 241 | Lopez, James | Liverpool | England | 1880 > |
| 849 | Lorrimer | England | ||
| 751 | Loss | Slutz, nr. Minsk | Belarus | 1850 |
| 458 | Loteman | Galicia | 1896 | |
| 38 | Louis | Sunderland | England | |
| 38 | Louis | Edinburgh | Scotland | |
| 81 | Lourie | Vitebsk | Belarus | |
| 31 | Lovat | Scotland | ||
| 31 | Lovatt | Scotland | ||
| 59 | Low | Vienna | Austria | |
| 281 | Lowenstein | Marijampole | Lithuania | < 1941 |
| 17 | Lowith | Pizen | Czech Republic | < 1895 |
| 17 | Lowith | Ozen | Poland | 1741 - 1895 |
| 399 | Lowy | Trencin | Slovakia | 1930s |
| 585 | Lubin | Bialystok | Poland | |
| 446 | Lubotynowicz | Stawiski, Lomza gub. | Poland | < 1880 |
| 398 | Lucas | Manchester | England | 19th C |
| 520 | Lukin | Mogilev | Belarus | late 19th C |
| 208 | Luntz | Siauliai | Lithuania | 1890 - 1944 |
| 641 | Lupelczyk | Bialystok | Poland | 1890 |
| 480 | Lushinski | Lithuania | ||
| 1087 | Lustgarten | Manchester | England | 1883 > |
| 1087 | Lustgarten | Botosani | Romania | < 1883 |
| 1087 | Lustgarten | New York | USA | 1906 > |
| 11 | Lustig | Krakow | Poland | 1888 |
| 353 | Lustig | Stryj / Dolina | Ukraine | 19th C |
| 198 | Luttenberg | Brest-Litovsk | Russia | 1854 |
| 655 | Lux / Luchs / Luks | Minsk | Belarus | c 1885 |
| 354 | Luxenberg | Birmingham / Walsall | England | < 1896 |
| 354 | Luxenberg | Zamosc | Poland | |
| 354 | Luxenberg | Johannesburg | South Africa | 1896 > |
| 354 | Luxenberg | USA | ||
| 354 | Luxenburg | Zamosc | Poland | 1870s |
| 333 | Luyre | Vilnius | Lithuania | 1800s |
| 333 | Luyre | Kurki | Poland | 1800s |
| 29 | Lyon | Chodva Plana | Czechoslovakia | c 1780 |
| 38 | Lyon | Plymouth | England | |
| 29 | Lyon | England | 19th C | |
| 29 | Lyon | Amsterdam | Netherlands | 19th C |
| 29 | Lyon | USA | 19th C | |
| 29 | Lyon | Surinam | West Indies | 19th C |
| 332 | Lyon(s)` | Portsmouth | England | 1860 |
| 316 | Lyons | Svisloc, Volkovysk | Belarus | c 1890 |
| 533 | Lyons | London | England | 1950 |
| 552 | Lyons | London E14 | England | 1940 |
| 586 | Lyons | Sheffield | England | |
| 542 | Lyons, Barnet | London | England | 1780 - 1850 |
| 542 | Lyons, Caroline | Portsmouth | England | 1825 |
| 82 | Lyons, Louisa | London | England | 1877 |
| 1157 | Machlin | Odessa | Ukraine | < 1939 |
| 595 | Machol | |||
| 194 | Madalinski | Kolo | Poland | 1800 > |
| 261 | Madenberg | UK | ||
| 261 | Madenberg | USA | ||
| 179 | Magnus | Chatham | England | 1865 |
| 262 | Magnus | Kings Lynn | England | 1760 |
| 262 | Magnus (later Solomon) | Chatham, Kent | England | 1850 |
| 988 | Magnus, Rachel | London | England | mid 19th C |
| 1233 | Mai | Vienna | Austria | < 1946 |
| 1233 | Mai | Manchester | England | 1938 > |
| 573 | Maier | Heidelberg | Germany | 1850 |
| 14 | Mainzer | London | England | |
| 14 | Mainzer | Franconia | Germany | |
| 706 | Maister | Minsk | Belarus | 1900 |
| 706 | Maister | Odessa | Ukraine | 1900 |
| 629 | Majerkiewicz | Checiny | Poland | |
| 328 | Malachowski | Germany & Poland | late 1800s - 1950 | |
| 39 | Malies | Botosani | Romania | c 1888 |
| 335 | Malin | Birmingham | England | 1892 > |
| 335 | Malin | Bristol | England | < 1892 |
| 335 | Malin | London | England | 1892 > |
| 237 | Malkin | Minsk | Belarus | c 1903 |
| 29 | Malor | Australia | ||
| 488 | Mandelbaum | Siedlce | Poland | c 1800 |
| 198 | Mandelblatt | Miedzyrzec | Russia / Poland | 1874 |
| 996 | Mandelick, Nina | Liverpool | England | 1850 - 1865 |
| 996 | Mandelick, Nina | Venice | Italy | 1850 - 1865 |
| 289 | Mandelstom | South Africa | 19th C | |
| 105 | Manoshewitz | Lithuania | c 1875 | |
| 902 | Manuchovitch | Liepaja (Libau) | Latvia | 1800 - 1941 |
| 9 | Maraney | London | England | |
| 9 | Maraney | Vilnius | Lithuania | |
| 9 | Maraney | South Africa | ||
| 263 | Marcovitch | Kalisz | Poland | c 1870 |
| 263 | Marcovitch | Szeredz | c 1870 | |
| 743 | Marcus | Leeds | England | 1890 - 1950 |
| 462 | Marcus | London | England | 1930 |
| 462 | Marcus | London | England | c 1930 |
| 615 | Marcus | Berlin | Germany | 1850s |
| 518 | Marcus | Lithuania | ||
| 636 | Marcus | Braila | Romania | < 1906 |
| 462 | Marcus | Ostrog | Ukraine | 1955 |
| 462 | Marcus | Ostrog ? | Ukraine | 1955 |
| 588 | Marcus(e) | Germany | < 1850 | |
| 55 | Margolinski | Sovetsik | Russia | 1880s |
| 641 | Margolis | Uman | Ukraine | 1890 |
| 697 | Margulies, Merrel | London | England | 1900 - 1940 |
| 697 | Margulies, Merrel | Bloemfontein | South Africa | c 1900 - 1940 |
| 377 | Mark | London | England | 19th C > |
| 1127 | Mark | Riga | Latvia | Pre 1900 |
| 1127 | Mark | Parnu | Estonia | Pre 1900 |
| 1127 | Mark | Tilsit | Russia | Pre 1900 |
| 1 | Mark, Hillel & Freda | Dublin | Ireland | early 20th C |
| 1 | Mark, Hillel & Freda | Navarane | Lithuania | 19th C |
| 660 | Marks | Leeds | England | |
| 660 | Marks | London | England | |
| 1265 | Marks | London, Aldgate | England | 19th C |
| 704 | Marks | London, Bishopsgate | England | 1839 |
| 38 | Marks | Newcastle | England | |
| 105 | Marks | Newcastle | England | 1880 > |
| 332 | Marks | Portsmouth | England | 1830 |
| 105 | Marks | Sheffield | England | 1880 > |
| 38 | Marks | Sunderland | England | |
| 398 | Marks | Whitechapel / Liverpool | England | 1750 > |
| 377 | Marks | Netherlands | < 1800 | |
| 625 | Marks | Plock | Poland | 1870 |
| 105 | Marks | Gratz-Posen | Prussia | c 1848 |
| 625 | Marks | Proshnitz | Russia | 1870 |
| 191 | Marks, Harry | London | England | 1890 - 1900 |
| 768 | Marks, Henry | Birmingham | England | < 1837 > |
| 768 | Marks, Henry & Joshuah | Poland | 1816 > | |
| 768 | Marks, Henry ben Joshua | Birmingham | England | c 1823 |
| 768 | Marks, Henry ben Joshua | Poland | 1813 > | |
| 264 | Marks, Solomon | Exeter / York | England | 1800 - 1827 |
| 411 | Markus | Rodelheim, Frankfurt am Main | Germany | 1850 - 1942 |
| 411 | Markus / Marcus | Hainchen / Roedelheim, Hesse | Germany | 1785 - 1942 |
| 411 | Markus / Marcus | Otterstadt, Rheinland Pfalz | Germany | 1785 - 1942 |
| 209 | Marmorstein | Biharnagybajom | Hungary | < 1940s |
| 180 | Marquis | Zsdrof | Galicia | 1870 - 1899 |
| 828 | Marschall | Griesheim | Germany | 18th C - 19th C |
| 23 | Marsden | London | England | |
| 470 | Marshall | Steyning, Sussex | England | 1878 |
| 667 | Marston | London | England | |
| 176 | Martin | London | England | |
| 337 | Martin | London | England | |
| 908 | Martin | London, East End | England | 1800s |
| 398 | Marx | Achen / Bayern | Germany | 19th C > |
| 311 | Marx | Bruchsal | Germany | 1855 |
| 1037 | Marx | Untergrombach, Bruchsal | 1630 | |
| 328 | Masbach | Germany | 19th C - 20th C | |
| 316 | Masinsky | Vitebsk | Belarus | c 1902 |
| 828 | Massenbach | Freudental Baden | Germany | 18th C - 19th C |
| 667 | Mastboim / Mastbaum | Chelm | Poland | |
| 667 | Mastboim / Mastbaum | Dubienka | Poland | |
| 6 | Matlevitch / Matulewicz | Warszawa | Poland | 1804 - 1880 |
| 208 | Matz | Ukmerge | Lithuania | 1858 - 1900 |
| 179 | Mautner | Lakenbach ? | Austria | 1800 - 1900 |
| 179 | Mautner, Joseph | Lakenbach | Hungary | 1861 |
| 1127 | Maxwell | Boston / California / New York City / New Jersey |
||
| 160 | Mav | Pikelin | Lithuania | 1800 - 1890 |
| 1233 | May | Vienna | Austria | < 1946 |
| 1233 | May | Manchester | England | 1938 > |
| 411 | Mayerfeld / Maierfeld | Crumstadt / Biebesheim am Rhein | Germany | 18th C - 1942 |
| 411 | Mayerfeld / Maierfeld | Crumstadt / Biebesheim am Rhein | Germany | 18th C - 1942 |
| 776 | Mazzier | < 1899 | ||
| 142 | Measnikoff | Prilucki | Ukraine | |
| 142 | Measnikoff | Liberty, New York | USA | |
| 142 | Measnikoff | Linden & Roselle, NJ | USA | |
| 422 | Mechel | London | England | < 2000 |
| 86 | Medex | Berlin | Germany | |
| 86 | Medex | Netherlands | ||
| 86 | Medex | 1750 - 1950 | ||
| 832 | Mednick | Canada | 1880 > | |
| 832 | Mednick | London | England | 1880 > |
| 832 | Mednick | Sunderland | England | 1900 > |
| 832 | Mednick | Kalius | Ukraine | < 1899 |
| 832 | Mednick | Kamenets Podolsky | Ukraine | < 1899 |
| 832 | Mednick | USA | 1880 > | |
| 828 | Meerfeld | Chernovtsy | Ukraine | 19th C |
| 81 | Mehlberg | Kopyczynce | Galicia | |
| 1037 | Meier | Schierstein, Wiesbaden | Germany | 1800 |
| 1052 | Meirs, Jacob | Mosedis | Lithuania | < 1880 |
| 299 | Meister | Lomza | Poland | c 1890 |
| 591 | Mel(t)zer | London | England | |
| 591 | Mel(t)zer | Edinburgh | Scotland | |
| 54 | Melcher | Shilal, Kovno | Lithuania | 1873 |
| 328 | Melchior | Copenhagen | Denmark | early 19th C |
| 864.1 | Melchior | Denmark | ||
| 864.1 | Melchior | Germany | ||
| 775 | Melondovitch | London | England | 1896 - 1956 |
| 775 | Melondovitch | Vilnius | Lithuania | 1860 - 1902 |
| 276 | Melsack | Lodz | Poland | |
| 276 | Melsack | Warszawa | Poland | |
| 30 | Meltzer | Minsk | Belarus | |
| 615 | Meltzer | Siauliai | Lithuania | 1880s |
| 409 | Melya | Chmielnik | Poland | 1887 |
| 38 | Melzer | Newcastle | England | |
| 38 | Melzer | New Zealand | ||
| 296 | Mendalavitch | Poland | 1880s | |
| 349 | Mendel | London, East End | England | |
| 215 | Mendelsohn | Antwerp | Belgium | |
| 591 | Mendelsohn | Latvia | < 1900 | |
| 215 | Mendelsohn | Liepeja | Lithuania | |
| 215 | Mendelsohn | Piltene | Lithuania | |
| 215 | Mendelsohn | Ventspis | Lithuania | |
| 97 | Mendelson | London | England | |
| 75 | Mendelson | Vishtnetz | Lithuania | |
| 309 | Mendes | London | England | 1920 |
| 597 | Mendes | Bayonne | France | < 1786 |
| 597 | Mendes | Amsterdam | Netherlands | < 1786 |
| 596 | Mendes Belisario | London | England | |
| 597 | Mendes Belisario | London | England | early 19th C |
| 29 | Mendes do Costa | London | England | |
| 29 | Mendes do Costa | West Indies | ||
| 10 | Mendoza | London | England | 1800 - 1900 |
| 336 | Mendoza | London | England | 1845 |
| 533 | Mendoza | London | England | 1950 |
| 551 | Mendoza | London | England | 1774 - |
| 176 | Mendoza | |||
| 241 | Mendoza, Moses | Liverpool, Toxteth | England | 1880s |
| 241 | Mendoza, Moses | London | England | 1870s |
| 9 | Mereine | South Africa | ||
| 1 | Merskey | Bloomfontein | South Africa | early 20th C |
| 1 | Mersky | Cape Town | South Africa | < 1915 |
| 637 | Merton | London | England | 1885 - 1995 |
| 637 | Merton | Frankfurt-um-Main | Germany | 1856 - 1995 |
| 38 | Meryett | Reigate | England | |
| 398 | Merzbach | Frankfurt am Main / Berlin | Germany | 19th C - 20th C |
| 398 | Merzbach | USA | 20th C | |
| 516 | Mesirow | |||
| 10 | Messer, Joseph & Marie | London | England | 1900 > |
| 1089 | Messik, Joseph & Aaron | Hamburg | Germany and Russia | Pre 1916 |
| 345 | Messloff | Bobrusk, Nr Minsk | Belarus | |
| 615 | Metzler | Mainz | Germany | 1912 - 1914 |
| 727 | Meyer | Halberstadt | Germany | 17th C - 18th C |
| 828 | Meyer | Koeln-Muelheim | Germany | 18th C - 19th C |
| 831 | Meyer | Weisbaden | Germany | 1870s > |
| 398 | Meyer | Germany | 19th C - 20th C | |
| 649 | Meyer | Poznan | Poland | 1939 |
| 1114 | Meyer, Matilda | London | England | 1840 - 1874 |
| 203 | Meyer, Rosalie | Naugard | Pomerania | 1860 - 1926 |
| 1169 | Micaelovski | Poland | 1890 | |
| 48.2 | Michael | Bristol | England | 19th C |
| 29 | Michael | London | England | c 1920 |
| 29 | Michael | Glasgow | Scotland | 19th C |
| 625 | Michael (s) | Worldwide | ||
| 107 | Michael (s) | |||
| 43 | Michaelevsky | Vilnius | Lithuania | c 1882 |
| 23 | Michaelis | Australia | ||
| 23 | Michaelis | Lugde, Pyrmont | Germany | |
| 313 | Michaelovitch | Minsk | Belarus | |
| 247 | Michaelovitch | Budgislav | Poland | 1850 - 1939 |
| 543 | Michaels | Minsk | Belarus | |
| 359 | Michaels | London | England | 1890 - 1970 |
| 422 | Michaels | London | England | < 2000 |
| 359 | Michaels | Lodz | Poland | 1870 - 1900 |
| 816 | Michaelson | London, Leman Street | England | early 20th C |
| 413 | Michaelson | Little Russia | ||
| 816 | Michaelson | Izbica Kujawska / Wroclawek | Poland | 19th C |
| 994 | Michaelson | Edinburgh | Scotland | 1860 > |
| 24 | Michaelson | Cardiff | Wales | |
| 816 | Michalowski | Izbica Kujawska / Wroclawek | Poland | 19th C |
| 1028 | Michalski | Germany | ||
| 1028 | Michalski, Abraham | Germany | 1910 - 1920 | |
| 29 | Micholls | |||
| 82 | Migdal | Dobryn | Poland | |
| 322 | Mignon | London | England | 1800 - 1926 |
| 322 | Mignon | Russia | < 1800 | |
| 760 | Millenbach | Warszawa | Poland | |
| 704 | Miller | London | England | 1897 |
| 409 | Miller | Manchester | England | 1890s |
| 807 | Miller | Jedwabne | Poland | 1885 - 1913 |
| 625 | Miller | Plock | Poland | 1870 |
| 625 | Miller | Proshnitz | Russia | 1870 |
| 516 | Miller | Russia | 1870s | |
| 37 | Miller | Kamenets Podolsky | Ukraine | 19th C |
| 516 | Miller | New York | USA | |
| 1 | Miller, Hillel | Navarane | Lithuania | 19th C |
| 10 | Miller, Isaac | London | England | 1900 > |
| 6 | Millet | Dabrowa Tarnowska, Galitzia | Poland | 1859 - 1942 |
| 807 | Millewski | |||
| 35 | Milstone | Canada | ||
| 35 | Milstone | London | England | |
| 35 | Milstone / Milstein | Biala Podlaska | Poland | < 1889 |
| 15 | Mindelsohn | Warszawa | Poland | |
| 16 | Minden | Netherlands | ||
| 619 | Mindes | Vilnius | Lithuania | 1880 |
| 459 | Mindle | Warszawa | Poland | |
| 599 | Minkes | Siemianowice Slaskie | Poland | 1939 |
| 11 | Minolo | Berlin | Germany | c 1850 |
| 38 | Minski | Sunderland | England | |
| 38 | Minski | Russia | ||
| 38 | Minski | Cardiff | Wales | |
| 316 | Mintz | Warszawa | Poland | c 1900 |
| 595 | Mirels | |||
| 31 | Mirrelson | |||
| 956 | Mitchell, John | London | England | < 1853 |
| 313 | Mitchell, Marks | London | England | 1918 |
| 26 | Mittenthal | Wystyten ? | Lithuania | 1870 |
| 808 | Mittleman | Lvov | Ukraine | < late 19th C |
| 864.1 | Mocatta, Abraham | London | England | < 1751 |
| 864.1 | Mocatta, Abraham | Amsterdam | Netherlands | < 1751 |
| 328 | Moisescu | Romania | 1920s - 1940s | |
| 309 | Mok | Amsterdam | Netherlands | 1850s |
| 10 | Molen | Holland / England | ||
| 11 | Molinsky / Malinsky | Lodz | Poland | c 1881 |
| 328 | Monasch | Germany | late 1800s - 1950 | |
| 517 | Mond | Moscow | Russia | C 1880 |
| 5 | Monk | London | England | |
| 588 | Monk | Hungary | < 1879 | |
| 686 | Montagnes | Canada / Belgium | present | |
| 686 | Montague | USA ? | present | |
| 686 | Montanhes / Montannes | Portugal / Spain / Turkey | ||
| 686 | Montanhez / Montanes | Portugal / Spain | ||
| 686 | Montanjees | London | England | present |
| 686 | Montanjies | Amsterdam | Netherlands | |
| 686 | Monte | France | ||
| 686 | Monty | New Zealnd / Australia | present | |
| 9 | Morana | London | England | 1910s |
| 654 | Mordecai | London | England | |
| 387 | Morgan, Rachel | Swansea | Wales | 1808 - 1870 > |
| 584 | Morganstern | Biala Podlaska | Poland | 1942 |
| 1165 | Morganstern | |||
| 1046 | Moritz | Chodecz | Poland | 1860s |
| 1 | Mormer, Sidney | N.Y. State / Miami | USA | 1910 > |
| 85 | Morrice | England | ||
| 85 | Morrice | Jamaica | ||
| 13 | Morris | Derbyshire | England | |
| 897 | Morris | Devonport | England | 1905 - 1960 |
| 13 | Morris | Dillhorne, Staffs | England | 1880 |
| 517 | Morris | London | England | 1880 - 1909 |
| 721 | Morris | London | England | 1860 > |
| 728 | Morris | London | England | 1881 > |
| 659 | Morris | London, Limehouse | England | 1830 > |
| 717 | Morris | Manchester | England | 1870s > |
| 317 | Morris | Berlin | Germany | 1860 > |
| 517 | Morris | Germany | < 1829 | |
| 721 | Morris | Germany | < 1860 | |
| 571 | Morris | Amsterdam | Netherlands | |
| 728 | Morris | Belfast | Northern Ireland | 1881 > |
| 317 | Morris | Danzig | Prussia | 1800 - 1860 |
| 317 | Morris | Glasgow | Scotland | 1850 > |
| 992 | Morris | Scotland | 1900 > | |
| 920 | Morris (Zimmerman) | London, East End | England | 1896 > |
| 920 | Morris (Zimmerman) | Chernikow * | Poland | < 1896 |
| 59 | Moscana | Tatar-Pazarzcik | Bulgaria | |
| 1028 | Mosenthal | Germany | 1910 - 1920 | |
| 23 | Moses | Alsace | ||
| 1032 | Moses | Belgium | 1900 - 1943 | |
| 179 | Moses | Chatham, Kent | England | 1770 - 1850 |
| 23 | Moses | London | England | |
| 554 | Moses | London | England | 1787 |
| 637 | Moses | London | England | 1768 - 1995 |
| 376 | Moses | London > Cheltenham | England | 1800 > |
| 704 | Moses | London, Aldgate | England | 1840 |
| 262 | Moses | England | 1770 | |
| 332 | Moses | England | ||
| 64 | Moses | The Hague | Netherlands | 1720 - 1746 |
| 838 | Moses | Poland | < 1865 | |
| 1032 | Moses | Western Galicia | 19th C | |
| 1 | Moses, Moses | Swansea | Wales | 1850 > |
| 688 | Moshensky | Smela | Ukraine | 1919 |
| 86 | Moshkowitz | Poland | 1800s | |
| 86 | Moshkowitz | Russia | ||
| 607 | Moskovitz | Timkovichi / Minsk | Belarus | |
| 293 | Moskowich | Kalisz | Poland | < 1911 |
| 831 | Moss | Montreal | Canada | c 1840 - 1860 |
| 25 | Moss | London | England | |
| 831 | Moss | London, Marylebone | England | c 1860 - 1903 |
| 223 | Moss | |||
| 122 | Moss / Moses | Liverpool | England | 1910 |
| 122 | Moss / Moses | London | England | 1920 |
| 36 | Mothio / Mothew | Odessa | Russia | 1870 |
| 11 | Motzner | Gignvitz | Poland | |
| 11 | Motzner | Warszawa | Poland | c 1885 |
| 11 | Motzner | Warszawa | Poland | |
| 928 | Mullem | Amsterdam | Netherlands | < 1850 |
| 573 | Muller | Dehlingen ? | France | 1850 |
| 1233 | Müller | Vienna | Austria | |
| 1233 | Müller | Shanghai | China | 1938 > |
| 1233 | Müller | Batelov / Battelau | Czechoslovakia | |
| 1233 | Müller | Lodz | Poland | 1938 > |
| 669 | Munitz | Vidzey | Belarus | 1940 |
| 669 | Munitz | Kaunas | Lithuania | 1940 |
| 1133 | Muscovitch | London | England | 1905 > |
| 1133 | Muscovitch | Poland | < 1905 | |
| 178 | Muscovitch | Romania | ||
| 123 | Muslin | |||
| 89 | Mydat | Smymanow | Poland | c 1840 |
| 455 | Mydat / Mydatt / Maidat | Hull | England | |
| 455 | Mydat / Mydatt / Maidat | England | ||
| 455 | Mydat / Mydatt / Maidat | France | ||
| 455 | Mydat / Mydatt / Maidat | Poland | ||
| 289 | Myers | Birmingham | England | 1900s |
| 10 | Myers | London | England | 1830s |
| 16 | Myers | London | England | |
| 38 | Myers | London | England | |
| 44 | Myers | London | England | |
| 44 | Myers | London | England | |
| 86 | Myers | London | England | |
| 298 | Myers | London | England | < 1840 |
| 309 | Myers | London | England | 1883 |
| 422 | Myers | London | England | 1900 |
| 533 | Myers | London | England | 1940 |
| 560 | Myers | London | England | |
| 583 | Myers | London | England | |
| 704 | Myers | London, Aldgate | England | 1840 |
| 103 | Myers | Hamburg | Germany | c 1800 |
| 635 | Myers | Lithuania | c 1880 | |
| 879 | Myers | New Zealand | 1880 > | |
| 393 | Myers, Francis | Gillingham | England | 1882 |
| 393 | Myers, Francis | Somerset | England | mid 1860s |
| 988 | Myers, Isaac Michael | London, Aldgate | England | mid 19th C |
| 988 | Myers, Isaac Michael | Amsterdam | Netherlands | early 19th C |
| 785 | Myers, Jacob | London, Mile End | England | < 1842 |
| 1052 | Myers, Jacob | Mosedis | Lithuania | < 1880 |
| 82 | Myers, Moses | London | England | 1804 |
| 833 | Myers, Solomon & Paulina | London | England | 1850 > |
| 833 | Myers, Solomon & Paulina | Sierpc | Poland | < 1850 |
| 511 | Myerson | London, East End | England | 1895 |
| 62 | Nachemsohn | Auce | Latvia | 1830s |
| 62 | Nachemsohn | Leckava | Lithuania | 1850s |
| 641 | Nagelsmith | Berlin | Germany | 1840 |
| 1 | Nagleberg | Berezhany | Ukraine | 19th C |
| 459 | Naidovich / Naidoff | Tolochin | Belarus | |
| 459 | Naidovich / Naidoff | New York | USA | |
| 459 | Naidovich / Naidoff | Philadelphia | USA | |
| 687 | Najding | Lodz | Poland | < 1910 |
| 87 | Najman | Kishinev | Moldova | 1901 |
| 584 | Najmark | Kurow | Poland | 1942 |
| 999 | Narkinsky | Poland | < 1897 | |
| 999 | Nashelski / Nasielski | Poland | < 1897 | |
| 862 | Nathan | Rio de Janero | Brazil | 1810 - 1950 |
| 580 | Nathan | Hull | England | 1890 |
| 862 | Nathan | Leatherhead | England | 1880 - 1910 |
| 132 | Nathan | London | England | |
| 280 | Nathan | London | England | 1800 - 1900 |
| 298 | Nathan | London | England | < 1840 |
| 369 | Nathan | London | England | 1800s |
| 517 | Nathan | London | England | 1818 - 1869 |
| 862 | Nathan | London | England | 1750 - 1950 |
| 831 | Nathan | London, Soho | England | c 1821 |
| 808 | Nathan | London, Whitechapel | England | 1890 - 1920 |
| 808 | Nathan | Sheffield | England | 1890 - 1905 |
| 862 | Nathan | New Orleans | France | 1830 - 1860 |
| 862 | Nathan | Dusseldorf | Germany | 1800 - 1870 |
| 25 | Nathan | Emden | Germany | |
| 369 | Nathan | Amsterdam | Netherlands | 1800s |
| 862 | Nathan | Amsterdam | Netherlands | 1700 - 1750 |
| 862 | Nathan | Gothenburg | Sweden | 1830 - 1900 |
| 25 | Nathan, Abraham | London | England | 1914 - 1918 |
| 971 | Nathan, Judah | London, Whitechapel | England | < 1871 |
| 25 | Nathan, Lewis | London | England | 1879 |
| 542 | Nathan, Philip | London | England | 1785 - 1870 |
| 635 | Nathanson | Riga | Latvia | c 1870 - 1876 |
| 16 | Natkiel | Netherlands | 1858 | |
| 86 | Nauenberg | Germany | ||
| 86 | Nauenberg | Germany | ||
| 640 | Nayler | Ireland | ||
| 372 | Needleman | Jozefow | Poland | 19th C |
| 372 | Needleman | 1939 | ||
| 531 | Negal | Rujiena | Latvia | |
| 1245 | Negri(n) | Istanbul | Turkey | < 1918 |
| 603 | Neiditch | Pinsk | Belarus | c 1900 |
| 62 | Neipris | Tryskiai | Lithuania | 1850s |
| 248 | Nelken | Karlish | Poland | 1850s - 1880s |
| 41 | Nelkin | Kalisz | Poland | 1833 |
| 2 | Nelson | London | England | early 19th C |
| 223 | Neporent / Neiporent | Nieport | Poland | |
| 349 | Neshaver | Jozefvow nad Wisla | Poland | |
| 1087 | Nessis | Botosani | Romania | 1893 > |
| 772 | Nestel | Komarno, Rozdol | Ukraine | 1942 |
| 772 | Nestel | Rozdol | Ukraine | < 1942 |
| 229 | Netto | London | England | 1800 - 1856 |
| 108 | Neuberger | Berlin | Germany | 1934 |
| 108 | Neuberger | Breslau | Germany | |
| 1247 | Neuburg | Pilsen | 19th C | |
| 1037 | Neuburger | Furth | Germany | 1852 |
| 818 | Neuer, Josephine & Sigmund | Lodz Ghetto | Poland | 1941 > |
| 519 | Neufeld | Vienna | Austria | 1938 |
| 828 | Neugarten | any | ||
| 828 | Neugarten | Herdecke Westphalia | Germany | 19th C |
| 117 | Neuhauser | Eastern Galicia | Ukraine | |
| 308 | Neuman | New York, NY | USA | 1920 - 1990 |
| 312 | Neumann, Jacob | Sheffield | England | 1884 > |
| 961 | Neumark | Georgensgemünd, Nürnberg | Germany | 1870 - 1904 |
| 635 | Neumark | Kaposvar | Hungary | 1840 - 1842 |
| 308 | Neuschiller | Poland | ||
| 308 | Neuschuler | Poland | ||
| 29 | Neustadt | England | 19th C | |
| 249 | Neustadtl, Rudolph | Aussig a/d Elbe | Czech Republic | 1899 |
| 249 | Neustadtl, Theodore | Vienna | Austria | 1899 |
| 1203 | Newman | London | England | 1880 > |
| 228 | Newman | Russia | ||
| 60 | Newman | UK | 1880 > | |
| 308 | Newman | New York, NY | USA | 1920 - 1990 |
| 874 | Newmark | London | England | 1877 > |
| 874 | Newmark | Poland | < 1877 | |
| 874 | Newmark | Russia | < 1877 | |
| 280 | Newton | London | England | 1800 - 1901 |
| 641 | Neyman | Liepaja | Latvia | 1856 |
| 558 | Nichinsky | Kalisz | Poland | < late 19th C |
| 558 | Nichinsky | Konin | Poland | < late 19th C |
| 558 | Nichinsky | UK | 19th C > | |
| 91 | Nicholspalk | Kleivan | Russia | 1885 |
| 91 | Nidcelshparz | Kleivan | Russia | 1885 |
| 48.1 | Nielsen | Denmark | 1800 - 2000 | |
| 48.1 | Nielsen | Berlin | Germany | 1850 - 2000 |
| 229 | Nieto | Venice | Italy | 1650s |
| 194 | Niewolski | Kolo | Poland | 1840 - 1890 |
| 194 | Niewolski | Lowicz | Poland | 1900 - 1914 |
| 194 | Niewolski | Sochaczew | Poland | 1890 - 1914 |
| 194 | Niewolski | Sompolno | Poland | 1800 - 1840 |
| 230 | Noack | Berlin | Germany | 1880 - 1942 |
| 230 | Noack | Rogonzno | Poland | < 1880s |
| 4 | Noah | Pinkova | Poland | |
| 614 | Nochichel | Berdichev | Poland | 1900 |
| 992 | Nochomovitch | Plunge | Lithuania | 1800 - 1900 |
| 2 | Nochowich | Poland | 19th C | |
| 687 | Norden | Ramsgate | England | 1870s |
| 687 | Norden | South Africa | 19th C | |
| 422 | Nort | Groningen | Netherlands | 1880s |
| 523 | Nothman | Wroclaw | Poland | |
| 793 | Novikhovich | Jonava | Lithuania | < 1900 |
| 450 | Nowsensohn | Riga | Latvia | c 1893 |
| 523 | Noz | Vilnius | Lithuania | |
| 619 | Noz | Vilnius | Lithuania | 1880 |
| 1157 | Nozhik | St. Petersburg | Russia | < 1910s |
| 571 | Nunes Nabarro | Amsterdam | Netherlands | |
| 97 | Nunes Vaz | London | England | |
| 336 | Nunes-Cardoza | London | England | 1940s |
| 10 | Nunes-Martinez | London | England | 1712 |
| 176 | Nunes-Martinez | London | England | |
| 61 | Nurick | Tukums | Latvia | |
| 100 | Nussbaum | Rzeszow | Poland | 19th C |
| 87 | Nyman / Niman | Kishinev | Moldova | 1901 |
| 367 | Obstfeld | Netherlands / USA / Israel | ||
| 367 | Obstfeld | Poland | ||
| 1159 | Ochman | Belaya Tserkov / Kiev | Ukraine | < 1920 |
| 539 | Odenheimer | New York | USA | |
| 39 | Oettinger | Buttenhausen | Germany | |
| 39 | Oettinger | Wurttemberg | Germany | |
| 268 | Offstein | Muzzeer, Minsk | Belarus | 1892 |
| 886 | Oldreive | Devon / Jersey | UK | 1800 - 1850 |
| 67 | Olsberg | Kaunus | Lithuania | |
| 38 | Olsberg / Olsburgh | Sunderland | England | |
| 38 | Olsberg / Olsburgh | Holzberg | Poland | |
| 38 | Olsberg / Olsburgh | Prussia | ||
| 38 | Olschowski | England | ||
| 38 | Olschowski | Podzamce | Poland | |
| 38 | Olschowski | USA | ||
| 972 | Ol'szjevser / Olsover | Przasnysz | Poland | 1800 - 1930 |
| 594 | Operchinsky | Chernovtsy | Ukraine | 1870s |
| 38 | Opet | Poland | ||
| 38 | Opet | Prussia | ||
| 359 | Opetikash | Poland | 1860 - 1890 | |
| 328 | Oppenheim | Berlin / Frankfurt-am-Main | Germany | 1800 - 1940s |
| 637 | Oppenheim | Frankfurt-um-Main | Germany | 1645 - 1758 |
| 868 | Oppenheim | Taureg | Lithuania | 1850 - 1870 |
| 868 | Oppenheim | Glasgow | Scotland | 1870 - 1900 |
| 901 | Oppenheim, Henry | London, Hampstead | England | 1909 |
| 144 | Oppenheimer | Chsky | Czech Republic | 1860 |
| 34 | Oppenheimer | Germany | ||
| 1 | Ordman | Dublin | Ireland | 1900 > |
| 99 | Orkev | Lithuania | 1880 | |
| 261 | Orlitzky | Warszawa | Poland | 1880 |
| 117 | Orlofsky | Svisloch / Porozow / Bialystok | Belarus | |
| 144 | Ornstein | Holitsch | Hungary | 1855 |
| 551 | Ornstien | Melbourne | Australia | 1866 - 1869 |
| 551 | Ornstien | London | England | 1836 - 1915 |
| 551 | Ornstien | Portsmouth | England | 1854 - 1879 |
| 551 | Ornstien | Cape Town | South Africa | 1882 - 1910 |
| 551 | Ornstien | Kimberley | South Africa | 1885 |
| 282 | Osiakowski | Kalisz | Poland | |
| 99 | Osrin | Lithuania | 1880 | |
| 539 | Ostermeyer | Brentwood, Essex | England | |
| 539 | Ostermeyer | London | England | |
| 603 | Ostroff | Vitebsk | Belarus | 1899 |
| 1159 | Ostrofsky | Belaya Tserkov / Kiev | Ukraine | < 1920 |
| 310 | Ostrolenk | Berlin | Germany | |
| 310 | Ostrolenk | Warszawa | Poland | |
| 612 | Ostrovsky | Poland | < 1911 | |
| 409 | Ostucher | Starokonstantinov | Ukraine | 1880s |
| 508 | Ottolangui | Melbourne | Australia | 1850s |
| 508 | Ottolangui | London | England | 1792 - 1808 |
| 274 | Ozinsky | Sviencian | Poland / Lithuania | 1927 |
| 333 | Packer | Kiev | Ukraine | 1800s |
| 72 | Packer | Korostyshev, Kiev | Ukraine | |
| 475 | Pacyna | Berlin | Germany | 1870 |
| 475 | Pacyna | Kepno / Wroclaw | Poland | |
| 475 | Pacyna | Pacyna | Poland | 1750 |
| 475 | Pacyna | Wroclaw | Poland | 1750 |
| 244 | Padwa | Brody | Ukraine | 19th C |
| 146 | Paine | Wingrave, Bucks | England | 1840 |
| 399 | Paisha | Minsk | Belarus | 1890 - 1900 |
| 488 | Palte | Osiacow | Poland | c 1800 |
| 590 | Papilanski | Manchester | England | c 1890 |
| 590 | Papin / Peppin | London | England | late 1930s |
| 1 | Paradis | New York | USA | |
| 64 | Pareezer | Sunderland | England | 1889 |
| 294 | Pargal | Darmstaat-Hesse | Germany | 1760s > |
| 294 | Pargal | Ober Ramstaat | 1880 | |
| 501 | Pariente | Tetuan | Morocco | 1820 |
| 282 | Parzebczewski | Kalisz | Poland | |
| 315 | Parzencewski | Ozorkow | Poland | 1860s |
| 732 | Pas(s)ov | Vitebsk | Belarus | 1800 - 1920 |
| 732 | Pas(s)ov | Nevel | Russia | 1800 - 1920 |
| 105 | Pass | London | England | |
| 828 | Pass(e)mann | Xanten-Rhine | Germany | 18th C |
| 828 | Passman | Xanten-Rhine | Germany | 18th C - 19th C |
| 409 | Pasternak | Chmielnik | Poland | |
| 401 | Pavlinger | Krakow | Poland | 1901 |
| 30 | Paykel | Vitebsk | Belarus | |
| 105 | Paz de Leon | London | England | |
| 615 | Pearl / Perl | Luoke | Lithuania | 1880s |
| 38 | Pearlman | Sunderland | England | |
| 318 | Pearlman | Jekabpils | Latvia | < 1891 |
| 38 | Pearlman | Kretinga | Lithuania | |
| 60 | Pearlman | Glasgow | Scotland | 1880 > |
| 635 | Pearlson | Russia | c 1875 | |
| 15 | Pedott | |||
| 299 | Pedovitch | Lomza | Poland | c 1890 |
| 237 | Peentner | UK | ||
| 237 | Peentner | USA | ||
| 579 | Peitrowski / Peters | Blackburn | England | 1939 |
| 72 | Peker | Korostyshev, Kiev | Ukraine | |
| 194 | Pelcner | Kolo | Poland | 1780 - 1850 |
| 488 | Pelta / Pelta | Osiacow | Poland | c 1800 |
| 433 | Penzik | Kubiczow | Poland | < 1941 |
| 433 | Penzik | South Africa | ||
| 570 | Pepper, Joe | Australia | < 1957 | |
| 570 | Pepper, Joe | London | England | |
| 308 | Pereg | Israel | 1945 - 2000 | |
| 32 | Peretzman | Latvia | ||
| 78 | Perevoznik | Jonava | Lithuania | 1850 - 1941 |
| 398 | Perez | Germany | 19th C - 20th C | |
| 540 | Perez, David | London | England | 1900 - 1905 |
| 540 | Perez, Rose | Fleckney, Leics | England | |
| 387 | Perin | Swansea | Wales | 1800s |
| 1 | Perle | New York & Detroit | USA | 20th c |
| 518 | Perlmuter | Buenos Aires | Argentina | |
| 394 | Perloff | Veivis | Lithuania | 1914 |
| 30 | Pesachson | Kiev | Ukraine | |
| 526 | Peshkin | Brest | Belarus | |
| 526 | Peshkin | Slonim | Belarus | |
| 526 | Peshkin | Bialystok | Poland | |
| 1180 | Peters | Hamburg | Germany | 1920 - 1930 |
| 163 | Petrachunsky | St Petersburg | Russia | 1800s |
| 538 | Petricus | Poland | < 1812 | |
| 249 | Petschek, Ignaz | Aussig a/d Elbe | Czech Republic | |
| 1013 | Pfahl | Mullheim | Germany | 1800s |
| 352 | Pheres | Riga | Latvia | |
| 367 | Philippsburg | Germany | 1940s | |
| 1203 | Philips | Amsterdam | Netherlands | 1700 - 2000 |
| 672 | Philips | Meppel | Netherlands | 1750 - 1815 |
| 38 | Phillips | Devon / Cornwall | England | |
| 1492 | Phillips | London | England | 1800-1900 |
| 7 | Phillips | London | England | |
| 23 | Phillips | London | England | |
| 86 | Phillips | London | England | |
| 377 | Phillips | London | England | 1800 - 1850 |
| 422 | Phillips | London | England | < 2000 |
| 854 | Phillips | London/Home Counties | England | 19th C - 20th C |
| 1256 | Phillips | Manchester | England | 1860 - 1890 |
| 854 | Phillips | Co Tipperary | Ireland | 17th C - 18th C |
| 377 | Phillips | Netherlands | < 1800 | |
| 854 | Phillips | Londonderry | Northern Ireland | 16th C - 17th C |
| 1256 | Phillips | Edinburgh | Scotland | 1890 - 1920 |
| 854 | Phillips | Pembroke | Wales | 15th C - 16th C |
| 421 | Phillips | |||
| 86 | Phillips , Joel | London | England | 1770 - 1830 |
| 1256 | Phillips, Abraham | Poland | 1830 - 1860 | |
| 79 | Phillips, Benjamin | Australia | ||
| 79 | Phillips, Benjamin | South Africa | ||
| 79 | Phillips, Benjamin | UK | ||
| 79 | Phillips, Bertram | Australia | ||
| 79 | Phillips, Bertram | South Africa | ||
| 79 | Phillips, Bertram | UK | ||
| 317 | Phillips, David | London | England | 1800 > |
| 79 | Phillips, Esther | Australia | ||
| 79 | Phillips, Esther | South Africa | ||
| 79 | Phillips, Esther | UK | ||
| 79 | Phillips, Hannah | UK | ||
| 79 | Phillips, Jonah | |||
| 79 | Phillips, Julia | Australia | ||
| 79 | Phillips, Julia | South Africa | ||
| 79 | Phillips, Julia | UK | ||
| 604 | Piatkus | Ukraine | ||
| 364 | Pick | Moravska Ostrava | Czechoslovakia | c 1942 |
| 364 | Pick | Olomouc | Czechoslovakia | 1942 |
| 242 | Pick | London | England | 1840 |
| 40 | Picorney | Ostroleka | Poland | |
| 724 | Piczenik | Austria Hungary / Manchester | England | 1890 - 1950 |
| 512 | Piddington | London, East End | England | 1863 |
| 398 | Pikelnik / Pickolnik | Belarus | < 1900 | |
| 398 | Pikelnik / Pickolnik | Leeds | England | 1890 > |
| 427 | Pilpl | London, Golders Green | England | |
| 679 | Pilzkoon | London | England | 1900 > |
| 1227 | Pinchefsky | Poland | ||
| 612 | Pinchevsky / Pintshevsky | London | England | 1920 > |
| 612 | Pinchevsky / Pintshevsky | Jerusalem | Israel | < 1920 |
| 612 | Pinchevsky / Pintshevsky | Poland | c 1900 | |
| 391 | Pincus | Seduva | Lithuania | 1870 |
| 730 | Pinczewski (Textiles) | Lodz | Poland | 1860 - 1939 |
| 730 | Pinczewski / Pinchevsky | Jerusalem | Israel | |
| 571 | Pinentel | Amsterdam | Netherlands | |
| 571 | Pinki | Amsterdam | Netherlands | |
| 276 | Pinner | London | England | |
| 276 | Pinner / Pniewy? | Warszawa | Poland | |
| 808 | Pinnick | London, Whitechapel | England | 1850 > |
| 454 | Pinschefski | Lodz | Poland | 1880s |
| 1156 | Pinter | London | England | 1900 > |
| 1156 | Pinter | Lukow | Poland | < 1945 |
| 6 | Piterzeil | Dabrowa Tarnowska, Galitzia | Poland | 1880 - 1942 |
| 533 | Pizarro | London | England | 1956 |
| 801 | Pizer | London | England | 1890 > |
| 801 | Pizer | Plonsk | Poland | < 1887 |
| 475 | Plager | Sakiai | Lithuania | 1850 |
| 475 | Plager | Sakiai | Lithuania | |
| 475 | Plagerson | Manchester | England | 1899 > |
| 475 | Plagerson (Plager) | Manchester | England | 1887 |
| 551 | Platnauer | Bristol | England | 1842 - 1893 |
| 353 | Platzky | Lithuania | 19th C | |
| 353 | Platzky | South Africa | ||
| 199 | Plocki | Kowal | Poland | 19th C |
| 635 | Plotkin | Russia | c 1875 | |
| 994 | Plottnovsky | Hull / Grimsby / Sheffield | England | 1865 > |
| 994 | Plottnovsky | Rajgrod | Poland | < 1865 |
| 585 | Pogrund | Obeliai | Lithuania | |
| 634 | Polak | London | England | 1840s > |
| 571 | Polak | Amsterdam | Netherlands | |
| 672 | Polak | Amsterdam | Netherlands | < 1744 > |
| 634 | Polak | The Hague | Netherlands | < 1840s |
| 160 | Polakow | Berlin | Germany | 1820 - 1900 |
| 608 | Poliakoff / Poliau | Mogilev | Belarus | |
| 608 | Poliakoff / Poliau | Biaritz | France | |
| 608 | Poliakoff / Poliau | Moscow | Russia | |
| 608 | Poliakoff / Poliau | St Petersburg | Russia | |
| 608 | Poliakoff / Poliau | Taganrog | Russia | |
| 608 | Poliakoff / Poliau | Kremenchug | Ukraine | |
| 644 | Polinsky | Manchester | England | late 19th C > |
| 644 | Polinsky | Ukraine | < late 19th C | |
| 413 | Polishowski | Little Russia | 1890 | |
| 17 | Pollak | Domazlice | Czech Republic | c 1860 |
| 1115 | Pollak | Jablonec Nad Nisou | Czech Republic | 1908 - 1938 |
| 1115 | Pollak | Prague | Czech Republic | 1878 - 1908 |
| 352 | Pollock | Kaunus | Lithuania | |
| 113 | Pond(s) | Birmingham | England | 1900s |
| 89 | Poplowicz | Ostralenka | Poland | c 1840 |
| 240 | Porte | Canada | 1940s > | |
| 240 | Porte | London | England | |
| 240 | Porte | Riga | Latvia | 1860s |
| 240 | Porte | South Africa | 1860s > | |
| 512 | Porter | Cambridge | England | early 19th C |
| 150 | Posaner | |||
| 872 | Posener | Lodz | Poland | < 1873 |
| 468 | Polonsky | Slonim | Belarus | < 1890 |
| 365 | Posener (Cohen) | Kolo | Poland | 1860 - 1870 |
| 283 | Posner | Konin | Poland | 1800s - 1930s |
| 604 | Posner | Poland / Russia | c 1870 | |
| 43 | Pottesman | London | England | |
| 43 | Pottesman | Belchatov | Poland | c 1900 |
| 142 | Potyk | Druzhkopal | Belarus | |
| 142 | Potyk | Linden, NJ | USA | |
| 416 | Powers | Liverpool | England | 1816 |
| 641 | Pragan | Romania | 1880 | |
| 279 | Prager | London | England | |
| 279 | Prager | India | ||
| 372 | Pravda | Lodz | Poland | 19th C |
| 372 | Pravda | Poland | 1850 > | |
| 308 | Preger | Kalisz | Poland | 1880 - 1945 |
| 335 | Preis | London | England | 1874 > |
| 335 | Preis | Kutno | Poland | |
| 1052 | Preis / Price | Pinsk | Belarus | mid 19th C |
| 539 | Preiss | Oborniki | Poland | |
| 701 | Press | Minsk | Belarus | 1895 |
| 793 | Press | London, Canterbury, Nottingham | England | 1850 > |
| 444 | Press | Daugavpils | Latvia | < WW2 |
| 793 | Press | Jonava | Lithuania | < 1900 |
| 793 | Press | Kaunus | Lithuania | < 1900 |
| 715 | Press | Lithuania | 1900s | |
| 793 | Press | Paarl, Capetown | South Africa | 1850 > |
| 818 | Pressman | Tulchin | Ukraine | < 1909 |
| 335 | Price | London | England | 1874 > |
| 335 | Price | Kutno | Poland | |
| 1052 | Price, Aaron | Liverpool | England | 1907 |
| 277 | Price, Solomon | Melbourne | Australia | 1881 - 1925 |
| 277 | Price, Solomon | Newcastle | England | 1860 - 1881 |
| 277 | Price, Solomon | Poland | c 1860 | |
| 85 | Prince | England | ||
| 85 | Prince | South Africa | ||
| 148 | Princz / Prince | Austria-Hungary | ||
| 148 | Princz / Prince | England | ||
| 672 | Prins | Amsterdam | Netherlands | 1800 - 1840 |
| 97 | Proops | London | England | |
| 362 | Provencali / Provenzali | Italy | 13th - 17th C | |
| 434 | Pruchnie | Zhemens | Lithuania | 1915 |
| 434 | Pruchno | Zhemens | Lithuania | 1915 |
| 117 | Prussak / (any) | Szczuczyn Litevski | Belarus | 1700 - 1942 |
| 944 | Przedecki | Plock | Poland | < 1867 > |
| 816 | Przedzecki | Izbica Kujawska / Wroclawek | Poland | 19th C |
| 117 | Przybulsky | Svisloch / Porozow / Bialystok | Belarus | |
| 1 | Purcell | Liverpool | England | 1890 - 1980 |
| 1 | Purcell | Belfast | Northern Ireland | 1890 - 1980 |
| 715 | Puritz | |||
| 146 | Purkiss | Ardleigh, Essex | England | 1901 |
| 541 | Purvin(ski) | Vistytis | Lithuania | 1845 - 1871 |
| 541 | Purwin | Lazdijai | Lithuania | 1827 - 1854 |
| 541 | Purwin | Olecko | Poland | 1747 - 1878 |
| 541 | Purwin(ski) | Eisiskes | Lithuania | |
| 541 | Purwinski | Kalvarija | Lithuania | 1814 - 1859 |
| 541 | Purwinski | Lazdijai | Lithuania | 1833 - 1850 |
| 751 | Puskelininsky | Marijampole | Lithuania | 1850 |
| 688 | Pustansky / Poustjansky | Smela | Ukraine | 1919 / 20 |
| 404 | Pustig / Puschik | Nasielsk | Poland | < 1870 |
| 541 | Puwinska | Kalvarija | Lithuania | 1836 - 1859 |
| 29 | Pyke | England | ||
| 584 | Pyterman | Terespol | Poland | 1942 |
| 819 | Quaskey | Sheffield | England | 1890s |
| 349 | Rabin | London | England | |
| 446 | Rabin | Seta, Kaunas gub. | Lithuania | < 1910 |
| 349 | Rabin | Lithuania | ||
| 401 | Rabinowicz | Kaunus | Lithuania | 1880s |
| 523 | Rabinowitz | Vilnius | Lithuania | |
| 635 | Rabinowitz | Lithuania | 1840 - 1855 | |
| 872 | Rabinowitz, Bernard | Johannesberg | South Africa | < 1951 |
| 534 | Rabinowitz, Chaim | Daugavpils | Latvia | |
| 635 | Rabinowitz-Teomim | Jerusalem | Israel | 1901 - 1905 |
| 635 | Rabinowitz-Teomim | Lithuania | 1853 > | |
| 474 | Rabstein | Prashnitz | Russian Poland | early 20th |
| 122 | Rachelson | London | England | 19th C |
| 526 | Radin | Berdichev | Ukraine | < 1904 |
| 117 | Radomysler | Anywhere | Belgium | |
| 587 | Radowsky | Salcninkiai | Lithuania | c 1925 |
| 587 | Radowsky | Valkininkas | Lithuania | c 1925 |
| 313 | Radzinovic | Grimsby | England | |
| 313 | Radzinovic | Poland | ||
| 444 | Rahm | Upsala | Latvia / Lithuania | |
| 1129 | Raisman, Louis | Sakiai | Lithuania | 1847 - 1887 |
| 1129 | Raisman, Nissan | Sakiai | Lithuania | 1790 > |
| 362 | Raivid | Kaunus | Lithuania | c 1840 |
| 362 | Raivid | Telsiai | Lithuania | 1340 - 1844 |
| 1161 | Rajngwertz | Lodz | Poland | 1890 |
| 24 | Rapaport | Manchester | England | |
| 655 | Rapaport | Upyna | Lithuania | c 1883 |
| 604 | Raphael | London | England | c 1820 |
| 864.1 | Raphael | London / Harwich | England | 1720s > |
| 447 | Raphael | London, Spitalfields / Mile End | England | 1841 - 1914 |
| 864.1 | Raphael | Netherlands | 17th C - 18th C | |
| 447 | Rapheles / Raphael | Portsmouth | England | 1837 - 1862 |
| 516 | Rappaport | Manchester | England | |
| 309 | Rappeport | Seduva | Lithuania | |
| 1037 | Rapport | Bialystok | Poland | 1880 |
| 1037 | Rapport | South Africa | 1910 | |
| 1037 | Rapport | New York, NY | USA | 1910 |
| 879 | Raudnitz | Vienna | Austria | < 1939 |
| 362 | Ravad III | Posquigres, Provence | France | c 1197 |
| 362 | Ravid | Chicago | USA | > 2000 |
| 362 | Rayvid | St. Petersburg | Russia | |
| 349 | Rebbech | London | England | |
| 349 | Rebbech | Lithuania | ||
| 1005 | Rebeiro | Amsterdam | Netherlands | 1840 |
| 117 | Rechtschaffen | Eastern Galicia | Ukraine | |
| 715 | Redman | Romania | 1900s | |
| 1150 | Rees | London | England | 1835 > |
| 1150 | Rees | Netherlands | 1796 > | |
| 243 | Reese | Beilnws, Minsk | Belarus | |
| 243 | Reese | London | England | 1880 > |
| 243 | Reese | Odessa | Ukraine | |
| 244 | Reich | Brody | Ukraine | 19th C |
| 244 | Reich | Busk | Ukraine | 19th C |
| 180 | Reich / Rich | Bolshovtsky | Ukraine | 1870 - 1899 |
| 48 | Reichenberger | Berolzheim, Bavaria | Germany | |
| 48 | Reichenberger | Ischenhausen | Germany | |
| 14 | Reichold | Franconia | Germany | 1750 > |
| 59 | Reik | Opava | Czech Republic | |
| 59 | Reik | Osublama | Czech Republic | |
| 398 | Reinberg | London | England | 19th C |
| 398 | Reinberg | Leszno | Poland | 19th C |
| 398 | Reinberg | South Africa | 19th C | |
| 1233 | Reiniger | Batelov / Battelau | Czechoslovakia | |
| 2 | Reinwasser | Sejny | Poland | early 19th C |
| 39 | Reiss | Italy | ||
| 117 | Reiter | Dolina | Ukraine | 1700 - 1942 |
| 209 | Reiter | Tymenica | Ukraine | < 1940s |
| 559 | Reitlinger | Tchenhausen (?) | Germany | |
| 751 | Reitzes | Lvov | Ukraine | 1860 |
| 760 | Remanic | Bililofky | Russia | |
| 188 | Resnick | Butrimonys | Lithuania | 1877 - 1897 |
| 933 | Reuben(s) | Middlesborough | England | 1870 > |
| 529 | Reubens | London, Hackney | England | 1960 |
| 921 | Reubenstein | Telsiai | Lithuania | < 1890 |
| 1037 | Ribatsky | Manchester | England | 1900 |
| 471 | Ribensen | London | England | 1850 - 1900 |
| 471 | Ribensen | Scotland | 1850 - 1900 | |
| 39 | Richardson | Konin | Poland | |
| 39 | Richardson | Russia | ||
| 513 | Richland | Forst | Germany | |
| 939 | Richtig | Poland | < 1900 | |
| 939 | Richtig | UK | 1900 > | |
| 1258 | Rickler | Vilnius | Lithuania | < 1902 |
| 992 | Rifkind | Mosedis | Lithuania | 1770 - 1900 |
| 992 | Rifkind | Scotland | 1900 > | |
| 23 | Rigal | Vilnius | Lithuania | |
| 760 | Riminech | Bililofky | Russia | |
| 308 | Rimmer | Bessarabia | 1880 - 1910 | |
| 308 | Rimmer | Moldova | 1880 - 1910 | |
| 308 | Rimmer | USA | 1920 - 2000 | |
| 751 | Rind | Tomaszow | Poland | 1855 |
| 6 | Rinenberg | Bristol | England | < 1892 |
| 349 | Ring | London, East End | England | |
| 3 | Ring | Jaroslaw | Poland | 19th C |
| 265 | Ring | Poland | 1900 - 1939 | |
| 556 | Ris / Reiss | Endingen-Lengnau ? | Switzerland | |
| 345 | Rissin | Riga | Latvia | |
| 145 | Ritte | Wilkowiochen, Vilnius | Lithuania | |
| 145 | Rittenberg | Wilkowiochen, Vilnius | Lithuania | 1860s |
| 551 | Roat | London | England | 1875 - 2000 |
| 475 | Robinson | Ireland | late 18th C | |
| 818 | Rochendler | Tulchin | Ukraine | < 1909 |
| 345 | Rochmil | Rzeszow | Poland | |
| 751 | Rodker | Warszawa | Poland | 1845 |
| 1001 | Rogerstein | Birmingham | England | 1880 - 1895 |
| 1001 | Rogerstein | Latvia / Lithuania | < 1890 | |
| 1245 | Rogoff, Morris | Russia | < early 20th C | |
| 113 | Rojanski | Bradford | England | < 1893 |
| 113 | Rojanski | Russia | 1800s | |
| 992 | Rom | Lithuania | ||
| 992 | Rom | South Africa | ||
| 1049 | Romanofsky | Poltava | Ukraine | |
| 34 | Rome / Rom | Vilnius | Lithuania | |
| 515 | Rose | London | England | 1900 > |
| 624 | Rose | London | England | 1890 > |
| 398 | Rose | UK | 20th C | |
| 552 | Rose, Adolf & Dora | London | England | 1930 |
| 345 | Rosen | Riga | Latvia | |
| 36 | Rosen | Sokolov | Poland | 1940s |
| 413 | Rosen / Ruseck | Warszawa | Poland | |
| 904 | Rosenbaum | Tuszyn, nr Lodz | Poland | < 1920s |
| 24 | Rosenbaum | UK | ||
| 276 | Rosenberg | London | England | |
| 817 | Rosenberg | London | England | 1890s |
| 838 | Rosenberg | Portsmouth | England | 1881 - 1920 |
| 222 | Rosenberg | Wechtersbach | Germany | c 1939 |
| 1 | Rosenberg | Dublin | Ireland | 1900 > |
| 105 | Rosenberg | Tukums | Latvia | |
| 454 | Rosenberg | Klaipeda | Lithuania | 1880s |
| 411 | Rosenberg | Ciechanow | Poland | 19th C > |
| 250 | Rosenberg | Lomza | Poland | < 1942 |
| 732 | Rosenberg | Warszawa | Poland | 1800 - 1920 |
| 276 | Rosenberg | Poland | ||
| 739 | Rosenberg | Russia | ||
| 776 | Rosenberg | Warsaw | Russian Poland | < 1890 |
| 828 | Rosenberg | Chernovtsy | Ukraine | 19th C |
| 838 | Rosenberg | Kiev | Ukraine | < 1860 |
| 14 | Rosenblatt | Burghaslach, Franconia | ||
| 471 | Rosenbloom | London | England | 1850 - 1900 |
| 838 | Rosenbloom | Plock | Poland | < 1871 |
| 316 | Rosenbloom | Warszawa | Poland | c 1890 |
| 471 | Rosenbloom | Edinburgh | Scotland | 1850 - 1900 |
| 37 | Rosenbloom | Kamenets Podolsky | Ukraine | 19th C |
| 296 | Rosenburg | Poland | 1880s | |
| 117 | Rosencwaig | Pietrkow Trybunalski | Poland | 1800 > |
| 117 | Rosencwaig | Tomaszow Mazowiecki | Poland | |
| 365 | Rosenfeld | Soroka | Bessarabia | < 1921 |
| 39 | Rosenfeld | Romania | ||
| 209 | Rosenfeld | Brezova | Slovakia | < 1940s |
| 2 | Rosenfeld | Berlin | Germany | 20th C |
| 195 | Rosenfeld | Ozorkow / Kavita | Poland | |
| 398 | Rosenheim | Liverpool | England | 1860 > |
| 398 | Rosenheim | Heidingsfeld / Wuerzburg | Germany | < 1880 |
| 311 | Rosenstein | Odheim, Stuttgart | Germany | |
| 559 | Rosenthal | Hohenems | Austria | |
| 583 | Rosenthal | London | England | |
| 217 | Rosenthal | Berlin | Germany | 1920 - 1942 |
| 311 | Rosenthal | Bruchsal | Germany | |
| 14 | Rosenthal | Franconia | Germany | 1700 > |
| 615 | Rosenthal | Laudenbach | Germany | 1850s |
| 751 | Rosenthal | Riga | Latvia | 1860 |
| 346 | Rosenthal | Bialystok | Poland | 1864 - 1881 |
| 217 | Rosenthal | Mezhirichi | Poland | 1800s -1920 |
| 400 | Rosenthal | Russocice | Poland | |
| 244 | Rosenthal | Wroclaw | Poland | 19th C |
| 14 | Rosenthal | USA | 1900 > | |
| 191 | Rosenthal, Barnett | London | England | 1860 - 1870 |
| 294 | Rosenthal, Lewis | London / Manchester | England | 1870s |
| 1121 | Rosenthall | London | England | |
| 624 | Rosenzweig | London | England | < 1890 |
| 599 | Rosinsky | Poland | < WW2 | |
| 36 | Ross | Kalisz | Poland | 1880s |
| 715 | Ross | Lodz | Poland | 1900s |
| 648 | Rossenfelt | Milano | Italy | |
| 475 | Roteros(z)en | Liverpool | England | late 18th C |
| 475 | Roteros(z)en | Ireland | late 18th C | |
| 475 | Roteros(z)en | Marijampole | Lithuania | |
| 475 | Roteros(z)en | Rajgrod | Poland | |
| 475 | Roterosen | 1745 | ||
| 434 | Roth | Beltz | Galicia | 1915 |
| 36 | Roth | Kalisz | Poland | 1880s |
| 551 | Rothgeiser | London | England | c 1875 |
| 7 | Rothschild | Leicester | England | |
| 7 | Rothschild | Liverpool | England | |
| 7 | Rothschild | London | England | |
| 7 | Rothschild | Dublin | Ireland | |
| 7 | Rothschild | Altona | ||
| 39 | Rotimberg | Romania | ||
| 266 | Rotman | Russia | ||
| 179 | Rotschild | Manchester | England | 1870 - 1920 |
| 1 | Rottermund | Kurland | Latvia | 19th C |
| 46 | Rouw | London, Islington / Kent | England | 1700 - 1890s |
| 884 | Rowlansky | Brest Litovsk, Visokka | Belarus | 1870 |
| 884 | Rowlansky | c 1900 | ||
| 674 | Roza | Pultusk | Poland | 1900 |
| 123 | Rozainsky | Russia / Poland | < 1900 | |
| 751 | Rozdensky | Slutz, nr. Minsk | Belarus | 1880 |
| 317 | Rozelaar | London | England | 1863 - 1946 |
| 317 | Rozelaar | Amsterdam | Netherlands | 1812 |
| 816 | Rozen | Miedzyrzec Podlaski | Poland | 19th C |
| 157 | Rozenberg | Warszawa | Poland | 1920s |
| 194 | Rozendorn | Lowicz | Poland | 1840 - 1939 |
| 228 | Rozenryb | Russia | ||
| 456 | Rozenwasser, Manes | Lodz | Poland | 1870s |
| 456 | Rozenwasser, Shoel | Lodz | Poland | 1845 |
| 672 | Rozeveld | Appingedam | Netherlands | 1790 > |
| 655 | Ruben | Upyna | Lithuania | c 1893 |
| 933 | Ruben | Vilkaviskis | Lithuania | any |
| 31 | Ruben | Northern Ireland | ||
| 728 | Rubenstein | Lodz / Warzsawa | Poland | late 19th C |
| 398 | Rubenstein / Rubinstein | Belarus | < 1900 | |
| 398 | Rubenstein / Rubinstein | Leeds | England | 1900 > |
| 618 | Rubin, Solomon | Krakow | Poland | 1823 - 1910 |
| 105 | Rubinstein | Grimsby | England | |
| 105 | Rubinstein | Hull | England | |
| 874 | Rubinstein | London | England | 1900 > |
| 105 | Rubinstein | Berlin | Germany | c 1875 |
| 874 | Rubinstein | Russia | 19th C | |
| 223 | Rubinstein | |||
| 292 | Rubinstein, Iusaac Aaron | Sheffield | England | < 1892 |
| 446 | Rubinsztejn | Lomza gubermia | Poland | < 1890 |
| 281 | Rudich | Kostinsky | Ukraine | 1940s |
| 250 | Rudolph | Kalush | Ukraine | 1910 |
| 1107 | Runckle | Kaunas / Vilnius | Lithuania | 19th C |
| 29 | Rushin | Poland | ||
| 849 | Russek | Zloczew | Poland | |
| 46 | Russell | Islington / Clerkenwell / Kent | England | 1700 - 1890s |
| 46 | Russell | Northampton | England | 1700 - 1890s |
| 455 | Rutstein | London | England | |
| 590 | Rutstein | Manchester | England | c 1900 |
| 868 | Rutzer | Vilnius | Lithuania | 1880 > |
| 3 | Ryzy | Visotsk | Ukraine | 19th C |
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