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Last name サカグチ (サカグチ , Sakaguchi , Sakaguti ) , across the world, is quite a rare cognomen. The surname サカグチ is characteristic of Papua New Guinea, where it is quite a rare surname, Japan, where it is a rare surname, and Taiwan. Not in comparison with a country's population, it is commonest in Brazil, Japan, and the United States. More frequently, サカグチ is the forename as well as the last name.