Surname Бирни (Birney 
, Бирни 
) , across the world, is quite a rare family name. The family name Бирни is characteristic of Ireland, where it is quite a rare surname, Papua New Guinea, and the United Kingdom, where it is a rare surname. Measured by absolute frequency, this name is the most popular in the United States, the United Kingdom, and Ireland. Very seldom, Бирни is the forename as well as the last name.