Surname Koganezawa (Koganezawa 
) , worldwide, is a very rare cognomen. The cognomen Koganezawa is habitual in Poland, where it is a very rare surname, Philippines, where it is an extremely rare surname, and Brazil. Also, Koganezawa is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Koganezawa | Japan, China, Philippines, Poland, Brazil |
| takehito koganezawa Japanese contemporary artist, JP (b. 1974) |
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| masayuki koganezawa researcher |
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| tomoyuki koganezawa researcher |
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| tadachika koganezawa researcher |
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| hiroki koganezawa botanist |
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| yuka koganezawa Japanese candidate (b. 1983) |
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