Last name Tirnanić (Tirnanić 
) , around the globe, is a rare family name. The surname Tirnanić is characteristic of Southern Europe, particularly Serbia, where it is quite a rare surname, and Croatia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tirnanić | Serbia, Croatia |
| milana tirnanić (b. 1994) |
|