Last name Oatman (Oatman 
) , all around the world, is quite a rare surname. The cognomen Oatman is characteristic of the United States, where it is a rare surname, New Zealand, and Canada. Measured by absolute frequency, it most frequently occurs in the United States, Canada, and Morocco. Much less frequently, Oatman is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Oatman | Australia, Canada, Morocco, New Zealand, United States |
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olive oatman American living in Mormon, Tolkepaya, and Mohave societies after childhood kidnapping, US (b. 1837) |
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mary ann oatman kidnapped American child, US (b. 1844) |
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edward oatman Canadian ice hockey player, CA (b. 1889) |
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| russell oatman Canadian ice hockey player (1905-1964), CA (b. 1905) |
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| mike oatman (b. 1939) |
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| linda oatman high American writer and young adult (YA) novelist, US (b. 1958) |
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| billy oatman American ten-pin bowler, US (b. 1965) |
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| charles harold oatman American politician, US |
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| sam oatman college basketball player (2001–2005) East Tennessee State |
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| earl r. oatman |
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| hannah oatman (b. 1991) |
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