Family name Wilbourn (Wilbourn 
) , all over the world, is quite a rare last name. The last name Wilbourn is characteristic of the United States, where it is a rare surname, New Zealand, and the United Kingdom. In absolute terms, the name is most common in the United States, the United Kingdom, and Canada. Very seldom, Wilbourn is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Wilbourn | Canada, Philippines, New Zealand, United Kingdom, United States |
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makeba wilbourn American psychologist and professor, US (b. 1973) |
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| claudia wilbourn American bodybuilder, US (b. 1951) |
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| colin wilbourn GB (b. 1956) |
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| c.j. wilbourn college basketball player (2020–2020) Milwaukee |
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| brittany c wilbourn researcher (ORCID 0000-0003-3428-1392) |
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| alex wilbourn college basketball player (2018–2018) Youngstown State |
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| rachael v wilbourn researcher |
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