In all the world, Oyan (Oyan 
, Оян 
) is quite a rare epicene given name. The forename Oyan is characteristic of Indonesia, where it is a rare largely boy's, but infrequently girly name, Nigeria, where it is a rare unisex name, and Kazakhstan. In absolute terms, it is the most numerous in Indonesia, Nigeria, and India. More frequently, Oyan is the last name as well as the forename.