Surname Hirianov (Хирьянов 
, Hirianov) , around the globe, is a rare family name. The last name Hirianov is characteristic of Belarus, where it is a rare surname, Russia, and Kazakhstan, where it is a very rare surname. In absolute terms, it most frequently occurs in Eastern Europe, particularly Russia, Belarus, and Ukraine. Very seldom, Hirianov is the forename as well as the last name.