Last name Senjak (Senjak 
, Сеняк 
) , all around the world, is a rare surname. The last name Senjak is habitual in Croatia, where it is quite a rare surname, Bosnia and Herzegovina, and Ukraine, where it is a rare surname. Also, Senjak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Senjak | Croatia, India, Germany, Bosnia and Herzegovina, Austria |
| Сеняк | Russia, Armenia, Kazakhstan, Ukraine |
| zoran senjak (b. 1944) |
|