Surname Саку (Saku 
, Sakou 
, 迫 
) , throughout the world, is quite a common last name. The cognomen Саку is characteristic of the Democratic Republic of the Congo, where it is quite a rare surname, Cameroon, and Albania. Measured by absolute frequency, it is commonest in the Democratic Republic of the Congo, Indonesia, and China. More frequently, Саку is the forename as well as the last name.