Surname Hirja (Hirja 
, Хиря 
) , all over the world, is a rare cognomen. The last name Hirja is characteristic of Ukraine, where it is a rare surname, Romania, and Kazakhstan, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Ukraine, Romania, and India. Also, Hirja is the forename as well as the last name.