Surname פרוס (Prus 
, פרוס 
) , globally, is quite a common last name. The cognomen פרוס is habitual in Poland, where it is quite a common surname, Slovenia, where it is quite a rare surname, and Estonia. Not in comparison with a country's population, it is commonest in Poland, the United States, and Germany. Likewise, פרוס is the forename as well as the last name.