Surname Swilley (Swilley 
) , globally, is quite a rare cognomen. The cognomen Swilley is habitual in the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada. Measured by absolute frequency, it is the most numerous in the United States, Canada, and the United Kingdom.
| VARIANT | COUNTRY |
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| Swilley | Canada, New Zealand, United Kingdom, United States, Mexico |
| dennis swilley American football player, US (b. 1955) |
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| howard swilley college basketball player (1976–1979) Southern Mississippi |
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| russell swilley college basketball player (1976–1978) Denver |
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| daniel swilley (b. 1980) |
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| andre swilley American Internet personality, US (b. 1998) |
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