Cognomen Mclanahan (Mclanahan 
) , in the entire world, is a rare last name. The last name Mclanahan is habitual in the United States, where it is a rare surname, Canada, where it is a very rare surname, and Spain.
| VARIANT | COUNTRY |
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| Mclanahan | Canada, Spain, India, United States, United Kingdom |
| james xavier mclanahan American politician, US (b. 1809) |
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| tenant mclanahan US Navy officer (b. 1820) |
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sara mclanahan American sociologist (1940–2021), US (b. 1940) |
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| barbara hunt mclanahan arts administrator (1964-2019), DE (b. 1964) |
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| sara smith mclanahan Ph.D. University of Texas at Austin 1979 |
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| maverick l mclanahan researcher (ORCID 0000-0002-3557-8342) |
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| m. hawley mclanahan American architect |
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| helen mclanahan |
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| virginia may mclanahan |
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