Cognomen Chumpen (Chumpen 
, ชุมเพ็ญ ) , all over the world, is a rare surname. The last name Chumpen is characteristic of Peru, where it is quite a rare surname, Thailand, where it is a rare surname, and Argentina, where it is an extremely rare surname. In absolute terms, this name is the most popular in Thailand, Peru, and the United States. Very seldom, Chumpen is the forename as well as the last name.