Family name Ćwiok (Ćwiok 
) , all over the world, is a rare cognomen. The last name Ćwiok is characteristic of Eastern Europe, particularly Poland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ćwiok | Poland |
| stefan ćwiok Polish physicist, PL (b. 1933) |
|
|
| mikolaj ćwiok particle physicist |
|