| NABAKASKA | | | | | | |
| NALEPA | Slovakia | 1700-1850 | | | | |
| NAMELLIN | | | | | | |
| NAUMINOW | Bialystok | 1920 | | | | |
| NETZ | | 1850 | | | | |
| NIEDJELSKI | Bydgoszcz | 1875 | | Benton | MN | 1875 |
| NIEDZELSKI | Bydgoszcz | 1875 | | Benton | MN | 1875 |
| NIEMASZ | | 1920 | | | MI | |
| NIEMIEC | Rzeszow | | Tarnow | | | |
| NIERZWICKI | West
Prussia | 1795-1869 | Gros
Byslaw | | | |
| NIERZWICKI | West
Prussia | 1795-1869 | Gros
Byslaw | | | |
| NINNEMANN | Gross
Benz | 1800-1867 | | | | |
| NITKA | Pomorze | 1761-1851 | Swiecie | | | |
| NIZIO | Lublin | 1820 | | | | |
| NOSEK | Bialystok | 1825-1835 | | Cook | IL | 1910-1940 |
| NOVAJOSKI | Aust/Hungary | | | | | |
| NOWAKOWSKI | Lodz | 1890 | Kowal | | | |
| NOWICKA | Lodz | 1846 | Pabianice | | | |
| NOWOSADKO | | 1874 | | New
London | CT | |
| NOWOTARSKI | Krosno | 1900-1996 | | | | |
| NOWOWIECKI | Olsztyn | 1760 | Nidzica | | | |
| NYCZ | Brzozow | | | | | 1900 |
| OBUCHOWSKI | | | | | MA | 1906 |
| OLEJARZ | Przemysl | 1800-1850 | Jaroslaw | | | |
| OLES | Graundenz | 1834 | Gruta | Cook | IL | 1889 |
| OLESIAWANA | Graundenz | 1834 | Gruta | Cook | IL | 1889 |
| OPOROWSKI | Galicia | 1750-1860 | Rzeszow | Hampshire | MA | 1888 |
| ORBANSKI | Russia-Poland | 1800-1996 | Lidzianka | | MA | |
| ORZECHOWSKI | | | | | | |
| OVSHV | Lodz | 1800 | | | | |
| OWOC | Rzeszow | 1800 | Krosno | | | 1890 |
| OWOCOW | Rzeszow | 1800 | Krosno | | | 1890 |
|