Surname Kasimu (Kasimu 
) , throughout the world, is a common cognomen. The family name Kasimu is characteristic of Sub-Saharan Africa, particularly Nigeria, where it is quite a common surname, Tanzania, and Kenya, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Nigeria, Tanzania, and China. Also, Kasimu is the forename as well as the last name.