Worldwide, Apen (Apen 
, Апен 
) is quite a rare mostly male, but seldom girly forename. The forename Apen is habitual in Indonesia, where it is a rare dominantly boy's, but seldom feminine name, Kazakhstan, where it is a rare unisex name, and India, where it is a very rare dominantly boy's, but uncommonly girly name. In absolute terms, it is commonest in Indonesia, India, and Nigeria. Likewise, Apen is the last name as well as the forename.