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Last name おざわ (Ozawa , おざわ) , in the entire world, is quite a rare cognomen. The last name おざわ is habitual in Hong Kong, where it is quite a rare surname, Singapore, where it is a rare surname, and Japan. In absolute terms, it most frequently occurs in Indonesia, Japan, and Brazil. Very seldom, おざわ is the forename as well as the last name.