KOSMACZEWSKI
There are 16 known people with the surname KOSMACZEWSKI with 15 different first names. The surname KOSMACZEWSKI is particularly common in New Jersey and Pennsylvania Here you can find the geographic distribution of this nachname in all states:
| 1 | CONNECTICUT | 4 | CONNECTICUT | 4 |
| 1 | NEW JERSEY | 7 | NEW JERSEY | 7 |
| 1 | PENNSYLVANIA | 5 | PENNSYLVANIA | 5 |