Family name Sesjak (Sesjak 
) , all around the world, is a very rare last name. The surname Sesjak is characteristic of Croatia, where it is quite a rare surname, Sweden, where it is a rare surname, and Germany, where it is a very rare surname. Much less frequently, Sesjak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sesjak | Germany, Argentina, Sweden, United States, Croatia |