Last name Kayaya (Kayaya 
) , all over the world, is quite a rare cognomen. The last name Kayaya is characteristic of Sub-Saharan Africa, particularly Zambia, where it is quite a rare surname, Tanzania, where it is a rare surname, and Angola. Not in comparison with a country's population, the name is most common in Sub-Saharan Africa, particularly Tanzania, the Democratic Republic of the Congo, and Zambia. Very seldom, Kayaya is the forename as well as the last name.