Cognomen Ochaka (Ochaka 
) , around the globe, is a rare last name. The cognomen Ochaka is characteristic of Sub-Saharan Africa, particularly Kenya, where it is a rare surname, Uganda, and Tanzania, where it is a very rare surname. Measured by absolute frequency, the name is most common in Sub-Saharan Africa, particularly Kenya, Uganda, and Nigeria. Very seldom, Ochaka is the forename as well as the last name.