Family name كاساي (Kassaye 
, Kasai 
, كاساي) , around the world, is a common cognomen. The cognomen كاساي is characteristic of Ethiopia, where it is quite a common surname, Nepal, where it is quite a rare surname, and Israel. In absolute terms, it most frequently occurs in Ethiopia, India, and Nepal. Also, كاساي is the forename as well as the last name.