Surname Koftan (Koftan 
, Кофтан 
) , all over the world, is a very rare family name. The last name Koftan is habitual in Denmark, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Ukraine. Measured by absolute frequency, it is commonest in the United States, Russia, and Kazakhstan. Much less frequently, Koftan is the forename as well as the last name.