Family name كاشين (Kashin 
, Kassin 
, Cashin 
) , in all the world, is quite a common last name. The cognomen كاشين is habitual in Ireland, where it is quite a common surname, Liberia, where it is quite a rare surname, and Estonia. In absolute terms, it is the most numerous in the United States, Russia, and Ireland. Also, كاشين is the forename as well as the last name.