Surname แจ่มจิต (Jaemjit 
, Chamjit 
, แจ่มจิต) , all around the world, is a rare cognomen. The cognomen แจ่มจิต is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, and Malaysia, where it is an extremely rare surname. Very seldom, แจ่มจิต is the forename as well as the last name.