Surname Chusit (ชูสิทธิ์ 
, Chusit 
) , all over the world, is quite a rare cognomen. The last name Chusit is characteristic of Thailand, where it is quite a rare surname, Spain, where it is a very rare surname, and Argentina. Measured by absolute frequency, it is commonest in Thailand, France, and Spain. Likewise, Chusit is the forename as well as the last name.