Cognomen اوكان (Okan 
, اوكان 
, Aucan 
) , around the world, is a common last name. The surname اوكان is characteristic of Turkey, where it is quite a common surname, Norway, where it is quite a rare surname, and Bosnia and Herzegovina. Not in comparison with a country's population, it is commonest in Turkey, Nigeria, and Indonesia. More frequently, اوكان is the forename as well as the last name.