Surname Valiant (องอาจ 
, Valiant 
, Vailant 
) , throughout the world, is quite a common last name. The cognomen Valiant is habitual in Thailand, where it is quite a rare surname, Indonesia, where it is a rare surname, and Brazil. More prevalently, Valiant is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| องอาจ | Thailand |
| Valiant | Indonesia, Philippines, Nigeria, United States, Brazil |
| Vailant | Canada, France, Brazil, United States |
Ambivalence, Vaillant, Valoir, Vàliant, จลาองอาจ, หาญยืนยง, องอาจตระกูล, องอาจนิรามัย, องอาจบรรณกร, องอาจผจง, องอาจวาณิชย์, องอาจสัมฤทธิ์, องอาจอำไพ, องอาจเกรียงไกร, องอาจโอฬาร, and เรืององอาจ
| halfdan the valiant legendary Scanian prince (b. 590) |
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| henrietta ouchterlony valiant Peerage person ID=494115 (b. 1808) |
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| james valiant English cricketer (1884-1917), GB (b. 1884) |
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jimmy valiant American professional wrestler, US (b. 1942) |
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leslie valiant British computer scientist, GB (b. 1949) |
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| margaret valiant American folklorist and music educator (1901-1982), US (b. 1901) |
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valiant budi yogi writer, ID (b. 1980) |
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| gayle lynne valiant researcher |
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| louisa maria burer valiant Peerage person ID=659323 |
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| valiant mah Ph.D. Virginia Polytechnic Institute and State University 1965 |
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| valiant investigators researcher |
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| thomas valiant Peerage person ID=494114 |
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| gregory valiant academic |
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| william g valiant |
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