Cognomen Коца (Koca 
, Коца 
, Kotsa 
) , around the world, is a widespread surname. The last name Коца is characteristic of Turkey, where it is a common surname, Albania, where it is quite a common surname, and Serbia, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in Turkey, Germany, and France. Much less frequently, Коца is the forename as well as the last name.