Surname Tvrdic (Tvrdic 
) , all over the world, is a very rare family name. The last name Tvrdic is characteristic of Southern Europe, particularly Croatia, where it is a rare surname, and Italy, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tvrdic | Italy, Croatia |
| karmela tvrdic (b. 1992) |
|