Cognomen Hayslett (Hayslett 
) , throughout the world, is quite a rare last name. The cognomen Hayslett is characteristic of the United States, where it is a rare surname, New Zealand, and Canada, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Hayslett | New Zealand, United Kingdom, United States, Venezuela, Canada |
| claude hayslett American baseball player, US (b. 1912) |
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| homer thornton hayslett, jr. Ph.D. Dartmouth College 1976 |
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| dennis hayslett American conductor, US |
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