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All over the world, Ijen (Ijen ) is a rare largely boy's, but uncommonly feminine first name. The forename Ijen is habitual in Indonesia, where it is a very rare masculine name, Nigeria, where it is a very rare largely boy's, but seldom female name, and Philippines, where it is a very rare epicene name. In absolute terms, it is commonest in Indonesia, Nigeria, and India. Likewise, Ijen is the last name as well as the forename.