Family name קורטני (Courtney 
, Kourtney , Kortney 
) , across the world, is a common surname. The cognomen קורטני is characteristic of Grenada, where it is quite a common surname, Ireland, and New Zealand, where it is quite a rare surname. Measured by absolute frequency, it is commonest in the United States, the United Kingdom, and Australia. More frequently, קורטני is the forename as well as the last name.