Cognomen Чойнацки (Чойнацки 
) , all around the world, is an extremely rare family name. The last name Чойнацки is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Чойнацки | Russia |
Choinacki, Choinatski, and Chojnacki