Cognomen Tonkovic-Capin (Tonkovic-Capin 
) , in all the world, is an extremely rare family name. The surname Tonkovic-Capin is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Tonkovic, and a last name Capin.
| VARIANT | COUNTRY |
|---|---|
| Tonkovic-Capin | United States |