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In all the world, היו (Hayo , היו ) is quite a rare dominantly male, but seldom feminine first name. The forename היו is habitual in Algeria, where it is a rare gender-neutral name, Germany, where it is a rare boy's name, and Saudi Arabia, where it is a rare unisex name. In absolute terms, the name is most common in Germany, Algeria, and Indonesia. Also, היו is the last name as well as the forename.