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Cognomen Tsugawa (津川 , Tsugawa ) , across the world, is a rare last name. The cognomen Tsugawa is habitual in Hong Kong, where it is a rare surname, Peru, where it is a very rare surname, and Philippines. In absolute terms, the name is most common in China, the United States, and Brazil. Likewise, Tsugawa is the forename as well as the last name.