Surname Obertas (Obertas 
, Обертас 
) , all over the world, is quite a rare family name. The family name Obertas is characteristic of Eastern Europe, particularly Slovakia, where it is quite a rare surname, Ukraine, and Belarus, where it is a rare surname. In absolute terms, it is commonest in Eastern Europe, particularly Russia, Ukraine, and Slovakia. Much less frequently, Obertas is the forename as well as the last name.