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Throughout the world, Louiz (Louiz ) is a rare epicene forename. The first name Louiz is characteristic of Algeria, where it is a rare dominantly girly, but uncommonly masculine name, Greece, where it is a rare masculine name, and the Democratic Republic of the Congo. In absolute terms, this name is the most popular in Algeria, the Democratic Republic of the Congo, and Indonesia. Likewise, Louiz is the last name as well as the forename.