Family name Choso (Choso 
, จสอ. 
) , all over the world, is quite a rare last name. The surname Choso is characteristic of Japan, where it is quite a rare surname, Kenya, where it is a rare surname, and Costa Rica. In absolute terms, this name is the most popular in Japan, Kenya, and Peru. Much less frequently, Choso is the forename as well as the last name.