In the entire world, Sibley (Sibley 
, סיבלי ) is a rare dominantly masculine, but seldom feminine first name. The forename Sibley is characteristic of Israel, where it is quite a rare boy's name, the United States, where it is a very rare gender-neutral name, and South Africa, where it is a very rare mostly masculine, but seldom girly name. Much more frequently, Sibley is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Sibley | United Kingdom, Australia, United States, Canada, Israel |
| סיבלי | Israel |
| clark sibley American, 1777-1807; artist, US (b. 1777) |
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lawson sibley American politician, US (b. 1836) |
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| harper sibley President of the U.S. Chamber of Commerce (b. 1885) |
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| mulford q. sibley American political scientist, US (b. 1912) |
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| montgomery blair sibley American lawyer, US (b. 1956) |
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| gibbs sibley Peerage person ID=80122 |
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| miles sibley researcher |
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| adams l sibley researcher |
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| valena c. sibley researcher |
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| duncan f. sibley |
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