Surname Masija (Masija 
) , in the entire world, is a rare last name. The cognomen Masija is characteristic of Sub-Saharan Africa, particularly Tanzania, where it is quite a rare surname, South Africa, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Tanzania, India, and Nigeria. Much less frequently, Masija is the forename as well as the last name.