Family name Klasić (Klasić 
) , worldwide, is quite a rare surname. The surname Klasić is characteristic of Southern Europe, particularly Croatia, where it is quite a common surname.
| VARIANT | COUNTRY |
|---|---|
| Klasić | Croatia |
|
hrvoje klasić Croatian historian, HR (b. 1972) |
|
| mladen klasić Croatian lawyer and sports official, HR (b. 1954) |
|
Max, Otto, Mario, Marta, Marko, Mateo, Matej, Matea, Milan, Milka, Mirna, Mirko, Sanja, Saša, Sonja, Stevo, Anita, Anica, Cveta, Boris, Borna, Božo, Igor, Ivka, Ivan, Ines, Ana, Teo, Tin, Ema, Iva, Maja, Mira, Mijo, Sara, Sven, Karla, Alen, Adam, Bara, Kata, Luka, Toni, Tina, Nada, Nika, Vera, Fran, Anka, and Karlo