Globally, Boin (Boin 
, 보인, Боин 
) is a rare epicene forename. The first name Boin is characteristic of South Korea, where it is a rare epicene name, Indonesia, where it is a rare masculine name, and Italy, where it is a very rare largely male, but uncommonly girly name. Not in comparison with a country's population, it is the most numerous in Indonesia, South Korea, and India. More prevalently, Boin is the last name as well as the forename.