Cognomen Clotfelter (Clotfelter 
) , around the world, is a rare last name. The last name Clotfelter is characteristic of the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Clotfelter | Brazil, Canada, United States, New Zealand, Venezuela |
| charles t. clotfelter American economist, US (b. 1947) |
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| ethan d clotfelter researcher |
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