Family name 上原 (Uehara 
, 上原 , Uyehara 
) , all over the world, is quite a common surname. The surname 上原 is characteristic of Brazil, where it is quite a rare surname, Peru, and Japan, where it is a rare surname. In absolute terms, it is commonest in Brazil, the United States, and Japan. Very seldom, 上原 is the forename as well as the last name.
| 上原六郎 JP (b. 1894) |
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上原忠春 Japanese diplomat, ambassador, JP (b. 1955) |
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上原博之 JP (b. 1957) |
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上原 ひろみ Japanese-born jazz composer and pianist (1979-), JP (b. 1979) |
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上原亜衣 pornographic performer (b. 1992), JP (b. 1992) |
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| 上原まり Japanese stage actress, JP (b. 1947) |
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| 上原秀樹 Japanese novelist, JP (b. 1953) |
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| 上原ゆかり Japanese actress, JP (b. 1956) |
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| 上原和彦 Japanese composer, JP (b. 1963) |
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| 上原晃 Japanese baseball player, JP (b. 1969) |
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| 上原さくら Japanese actress, JP (b. 1977) |
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| 上原あやか Japanese AV idol, JP (b. 1979) |
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| 上原健太 Japanese actor and seiyū, JP (b. 1979) |
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| 上原さつき Japanese mangaka, JP |
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| 上原舞 Japanese AV idol, JP (b. 1981) |
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