Family name Коку (Kokou 
, Koku 
, Коку 
) , in the world, is a common surname. The family name Коку is habitual in Sub-Saharan Africa, particularly Togo, where it is quite a common surname, Gabon, where it is quite a rare surname, and Ethiopia. Measured by absolute frequency, this name is the most popular in Sub-Saharan Africa, particularly Ethiopia, Togo, and Ghana. Also, Коку is the forename as well as the last name.