Last name Januzak (Жанузак 
, Янузак , Januzak 
) , around the world, is a rare family name. The surname Januzak is habitual in Kyrgyzstan, where it is quite a rare surname, Azerbaijan, and Kazakhstan, where it is a rare surname. More prevalently, Januzak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Жанузак | Kazakhstan, Kyrgyzstan, Azerbaijan, Russia, Ukraine |
| Янузак | Russia, Kazakhstan, Kyrgyzstan |
| Januzak | United States, Kazakhstan |