Cognomen Rocak (Rocak 
) , around the world, is a rare last name. The cognomen Rocak is characteristic of Slovenia, where it is quite a rare surname, Czechia, where it is a rare surname, and Australia, where it is a very rare surname. Not in comparison with a country's population, the name is most common in Czechia, Slovenia, and Germany. Very seldom, Rocak is the forename as well as the last name.
| niko rocak college basketball player (2020–202_) UC-Santa Barbara |
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| toni rocak Swiss basketball player (b. 1999) |
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