Last name Rókus (Rókus 
, Рох 
) , throughout the world, is a rare family name. The family name Rókus is characteristic of Kazakhstan, where it is a rare surname, Ukraine, and Hungary, where it is a very rare surname. Measured by absolute frequency, the name is most common in Ukraine, Kazakhstan, and Russia. Very seldom, Rókus is the forename as well as the last name.