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Cognomen Laua (Laua , เลา , Álava ) , in the entire world, is a rare family name. The cognomen Laua is habitual in Papua New Guinea, where it is quite a rare surname, Latvia, where it is a rare surname, and Uruguay. In absolute terms, this name is the most popular in Papua New Guinea, Indonesia, and Algeria. Also, Laua is the forename as well as the last name.