Last name 彩子 (彩子 
) , around the globe, is a very rare surname. The last name 彩子 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 彩子 is the forename as well as the last name.
| 清水 彩子 Japanese businesswoman, JP (b. 1982) |
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| 上村 彩子 Japanese announcer, JP (b. 1992) |
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