Family name Inian (Inian 
, อินเหี้ยน) , across the world, is a very rare cognomen. The surname Inian is habitual in Philippines, where it is a very rare surname, Honduras, and Thailand, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Philippines, India, and Thailand. Likewise, Inian is the forename as well as the last name.