Surname קירן (Ciarán 
, Kieren 
, קירן 
) , in the world, is a rare family name. The last name קירן is habitual in Germany, where it is a rare surname, Uruguay, and the United States, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Germany, the United States, and Nigeria. More prevalently, קירן is the forename as well as the last name.