Cognomen 沢 (Sawa 
, 沢 
) , all over the world, is a common last name. The family name 沢 is characteristic of Poland, where it is quite a rare surname, Cameroon, and Papua New Guinea. Not in comparison with a country's population, it most frequently occurs in Nigeria, Poland, and Algeria. Likewise, 沢 is the forename as well as the last name.
| 沢竜二 actor, JP (b. 1935) |
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| 沢たまき Japanese actress, JP (b. 1937) |
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| 沢ちひろ Japanese lyricist, JP (b. 1950) |
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| 沢しおん JP (b. 1976) |
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