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Worldwide, Wongchak (วงศ์จักร , Wongchak , วงศ์เพิก ) is an extremely rare masculine forename. Much more frequently, Wongchak is the last name as well as the forename.
Yuphin, Rathana, Nittaya, Doungrit, Charuphat, Phimphisa, Warissara, Waritsara, Chantharath, and Phitchayapha