In all the world, Achin (Achin 
, อาจิน 
, อาจิณ ) is quite a common mostly boy's, but uncommonly girly first name. The first name Achin is habitual in Thailand, where it is a rare unisex name, Oman, where it is a rare male name, and Nigeria, where it is a rare unisex name. Not in comparison with a country's population, this name is the most popular in India, Nigeria, and Thailand. Very seldom, Achin is the last name as well as the forename.