All over the world, Keyko (Keyko 
, Кеико 
, Кейко 
) is a rare epicene forename. The forename Keyko is habitual in Indonesia, where it is a rare unisex name, Peru, where it is a rare primarily girly, but very seldom boy's name, and Mexico, where it is a very rare principally girly, but very seldom male name. Also, Keyko is the last name as well as the forename.