Family name Ōta (オオタ 
, 大田 
, 誉子 ) , globally, is a rare cognomen. The last name Ōta is characteristic of Eastern Asia, particularly Japan, where it is a rare surname, and China, where it is a very rare surname. Predominantly, Ōta is the forename as well as the last name.
| ōta tokitsura (b. 1269) |
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| ōta sukeyori Japanese samurai of the Sengoku period (b. 1484) |
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| ōta sukeyasu (b. 1476) |
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| ōta suketaka (b. 1498) |
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| ōta sukemasa Japanese samurai of the Sengoku period (b. 1522) |
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| ōta yasusuke (b. 1531) |
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| ōta ujisuke Japanese samurai of the Sengoku period (b. 1542) |
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| ōta ujifusa Japanese samurai of the Sengoku period; son of daimyo Hōjō Ujimasa (b. 1565) |
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| ōta suketake Japanese samurai of the early Edo period, son of Ōta Sukemasa (b. 1570) |
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| ōta shigemasa (b. 1561) |
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| ōta sukenao (b. 1658) |
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ōta sukeyoshi Japanese noble (b. 1854) |
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| kakumin ōta (b. 1866) |
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| masao ōta born 1885; died 1945 (b. 1885) |
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| binkei ōta (b. 1890) |
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