Family name Tanasiuk (Tanasiuk 
) , globally, is a very rare last name. The family name Tanasiuk is characteristic of Northern America, particularly Canada, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Tanasiuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tanasiuk | Canada, Ukraine, United States |