Family name Kelsay (Kelsay 
) , around the globe, is quite a rare surname. The surname Kelsay is characteristic of Northern America, particularly the United States, where it is a rare surname, and Canada, where it is a very rare surname. Very seldom, Kelsay is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Kelsay | United Kingdom, South Africa, Australia, United States, Canada |
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john kelsay American politician, US (b. 1819) |
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| willie kelsay jockey, US (b. 1892) |
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chris kelsay American football player (born 1979), US (b. 1979) |
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| chad kelsay American football player, US (b. 1977) |
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| john kelsay American academic, US |
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| james d kelsay researcher |
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