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Last name Koca (خواجه
, Koca
, Коца
) , in the world, is a widespread cognomen. The family name Koca is characteristic of Turkey, where it is a common surname, Albania, where it is quite a common surname, and Sudan. Measured by absolute frequency, the name is most common in Turkey, Sudan, and Egypt. Much less frequently, Koca is the forename as well as the last name.