Surname Grandfield (Grandfield 
) , all over the world, is a rare cognomen. The last name Grandfield is characteristic of Australia, where it is a rare surname, the United Kingdom, and Ireland. In absolute terms, it is the most numerous in the United States, the United Kingdom, and South Africa.
| VARIANT | COUNTRY |
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| Grandfield | United Kingdom, Canada, Australia, South Africa, United States |
| jane sully grandfield (b. 1824) |
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virgil grandfield Canadian whistleblower |
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| nigel john grandfield (1938-1998), GB (b. 1938) |
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| kathryn grandfield researcher ORCID ID = 0000-0002-0188-9580 |
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| angus g. grandfield Peerage person ID=486982 |
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| ruth katriona grandfield (born 1986) (b. 1986) |
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| alex grandfield (born 1992) (b. 1992) |
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| francis gregory charles grandfield (born 1994) (b. 1994) |
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