Cognomen Pirh (Pirh 
, Пирх 
) , all over the world, is a rare family name. The surname Pirh is habitual in Slovenia, where it is quite a rare surname, Ukraine, where it is a rare surname, and Kazakhstan, where it is a very rare surname. In absolute terms, this name is the most popular in Ukraine, Slovenia, and Russia. Very seldom, Pirh is the forename as well as the last name.