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In the world, Gillen (吉伦 , Gillen , גילן ) is quite a rare dominantly male, but seldom feminine forename. The forename Gillen is characteristic of Luxembourg, where it is quite a rare gender-neutral name, Philippines, where it is a very rare dominantly female, but infrequently boy's name, and China, where it is a very rare boy's name. In absolute terms, it is commonest in China, Philippines, and the United States. More prevalently, Gillen is the last name as well as the forename.