Surname Usaka (Usaka 
) , all over the world, is a rare last name. The cognomen Usaka is characteristic of Nigeria, where it is a rare surname, Tanzania, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Nigeria, Tanzania, and India. Also, Usaka is the forename as well as the last name.