Family name Serpak (Serpak 
) , all over the world, is a very rare surname. The last name Serpak is characteristic of Lithuania, where it is a rare surname, Croatia, and Ukraine, where it is an extremely rare surname. Very seldom, Serpak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Serpak | Ukraine, Lithuania, United States, Turkey, Croatia |