Cognomen Koksun (Koksun 
, Коксун 
) , around the world, is a rare family name. The family name Koksun is habitual in Turkey, where it is a very rare surname, Russia, and Ukraine, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Turkey, Russia, and China. Very seldom, Koksun is the forename as well as the last name.