Last name Stelfox (Stelfox 
) , across the world, is a rare family name. The last name Stelfox is habitual in the United Kingdom, where it is a rare surname, Australia, and Canada. Measured by absolute frequency, it most frequently occurs in the United Kingdom, the United States, and Australia.
| VARIANT | COUNTRY |
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| Stelfox | Australia, South Africa, Canada, United Kingdom, United States |
| arthur wilson stelfox Irish malacologist, entomologist, botanist and architect (1883-1972), GB (b. 1883) |
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shirley stelfox British actress (1941-2015), GB (b. 1941) |
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| james stelfox English bass player, GB (b. 1976) |
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| henry t stelfox researcher |
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| alice j stelfox researcher |
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| margaret stelfox historian, GB |
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