Cognomen คำริน (Khamarin 
, Khamrin 
, คำริน) , around the world, is a rare surname. The surname คำริน is characteristic of Thailand, where it is a rare surname, Cambodia, where it is a very rare surname, and Russia, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Thailand, India, and Cambodia. Very seldom, คำริน is the forename as well as the last name.