Throughout the world, เอิ้น (Oen 
, เอิ้น) is quite a rare epicene given name. The forename เอิ้น is habitual in Indonesia, where it is a rare gender-neutral name, Pakistan, where it is an extremely rare masculine name, and China, where it is an extremely rare dominantly masculine, but uncommonly feminine name. In absolute terms, it is commonest in Indonesia, China, and India. More prevalently, เอิ้น is the last name as well as the forename.