Cognomen Grindstaff (Grindstaff 
) , in the world, is quite a rare last name. The surname Grindstaff is characteristic of the United States, where it is quite a rare surname, Finland, where it is a rare surname, and New Zealand. Not in comparison with a country's population, this name is the most popular in the United States, Finland, and Canada.
| VARIANT | COUNTRY |
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| Grindstaff | Belgium, Philippines, Canada, United States, Finland |
| doug grindstaff American sound editor (b. 1931) |
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| terry grindstaff researcher |
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| jenis grindstaff college basketball player (1998–2002) Virginia Tech; Tennessee |
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| jennifer l grindstaff researcher |
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| jessica grindstaff American painter and visual artist, US |
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