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In all the world, Illias (Illias , Илиас , イリアス ) is a rare predominantly boy's, but very infrequently feminine given name. The given name Illias is habitual in United Arab Emirates, where it is a rare boy's name, Afghanistan, and Belgium. In absolute terms, it most frequently occurs in India, Afghanistan, and Nigeria. Likewise, Illias is the last name as well as the forename.