Last name Słomkowski (Słomkowski 
) , across the world, is a rare cognomen. The surname Słomkowski is habitual in Poland, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Słomkowski | United States, Poland |
| franciszek słomkowski PL (b. 1849) |
|
|
| antoni słomkowski PL (b. 1900) |
|
|
| zygmunt słomkowski PL (b. 1928) |
|