Cognomen Kethley (Kethley 
) , all around the world, is a rare surname. The family name Kethley is habitual in the United States, where it is a very rare surname, Israel, and Brazil, where it is an extremely rare surname. Also, Kethley is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kethley | Brazil, United States, Philippines, Israel |
| john bryan kethley (b. 1942) |
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| caroline ingle kethley Ph.D. University of Texas at Austin 2005 |
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