Family name Nozawa (ノザワ 
, Nozawa 
) , across the world, is quite a rare surname. The cognomen Nozawa is characteristic of Hong Kong, where it is a rare surname, Qatar, and Japan. Measured by absolute frequency, it is the most numerous in Japan, Brazil, and Indonesia. More frequently, Nozawa is the forename as well as the last name.
| VARIANT | COUNTRY |
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| ノザワ | Japan |
| Nozawa | Brazil, United States, Hong Kong, Japan, Indonesia |
| kichibē nozawa (b. 1841) |
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| shigeo nozawa (b. 1913) |
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| yuriko nozawa botanist (b. 1924) |
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| koji nozawa botanist (b. 1925) |
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| kazunori nozawa Japanese chef (b. 1945) |
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| yoshinori nozawa (b. 1936) |
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| masaji nozawa Japanese candidate (b. 1949) |
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| kyōji nozawa (b. 1950) |
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| michio nozawa Japanese hair and make up artist (b. 1963) |
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| shingo nozawa botanist (b. 1974) |
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| hiraku nozawa Doctor University of Tokyo 2006 |
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| takashi nozawa researcher |
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| hiroaki nozawa researcher |
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| akifumi nozawa researcher (ORCID 0000-0001-7345-8491) |
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| michihito nozawa researcher (ORCID 0000-0003-4535-1210) |
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