Family name Chansan (Chansan 
, ชาญสรรค์ ) , throughout the world, is a rare cognomen. The last name Chansan is habitual in Thailand, where it is a rare surname, Myanmar, where it is a very rare surname, and Chile. In absolute terms, it is commonest in Thailand, Myanmar, and India. Much less frequently, Chansan is the forename as well as the last name.