All over the world, 正信 (正信 
, Masanobu 
) is quite a rare boy's forename. The first name 正信 is habitual in Japan, where it is a rare male name, China, and the United States, where it is an extremely rare principally male, but very seldom girly name. Also, 正信 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 正信 | China |
| Masanobu | China, Brazil, United States, Taiwan, Japan |
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狩野 正信 Japanese painter (1434-1530), JP (b. 1434) |
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堀田 正信 Japanese daimyo (1631-1680), JP (b. 1631) |
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| 竹腰正信 samurai of the early Edo period; Tsukegaro to Owari domain (1591-1645), JP (b. 1591) |
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| 小栗正信 JP (b. 1589) |
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石坂正信 Japanese educator (1860-1934), JP (b. 1860) |
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福岡正信 Japanese farmer and philosopher, JP (b. 1913) |
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渕正信 Japanese professional wrestler, JP (b. 1954) |
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| 生住正信 JP (b. 1902) |
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| 大久保 正信 Japanese actor and voice actor, JP (b. 1922) |
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| 都築正信 Japanese mathematician, JP (b. 1939) |
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| 宍倉正信 JP (b. 1936) |
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| 樋口正信 Japanese bryologist and botanist, JP (b. 1955) |
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| 梅野正信 Japanese historian, JP (b. 1955) |
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| 福谷正信 JP (b. 1948) |
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| 工正信 baseball player (1963-), JP (b. 1963) |
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