Surname Slemenik (Slemenik 
) , all over the world, is a rare family name. The family name Slemenik is habitual in Slovenia, where it is quite a rare surname, Austria, where it is a rare surname, and Croatia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Slemenik | Austria, Croatia, Slovenia |
| franc valentin slemenik SI (b. 1843) |
|