Cognomen Choem (เจิม 
, Choem 
, เฉิม ) , worldwide, is a very rare last name. The surname Choem is habitual in South-eastern Asia, particularly Cambodia, where it is a rare surname, Thailand, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Much more frequently, Choem is the forename as well as the last name.