Family name Thornicroft (Thornicroft 
) , all over the world, is a rare cognomen. The surname Thornicroft is characteristic of Zambia, where it is quite a rare surname, Malawi, where it is a rare surname, and New Zealand. Not in comparison with a country's population, it most frequently occurs in Zambia, the United Kingdom, and Malawi.
| VARIANT | COUNTRY |
|---|---|
| Thornicroft | United Kingdom, Zambia, United States, Malawi, Canada |
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harry scott thornicroft British judge, GB (b. 1868) |
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| maria thornicroft (1846-1921) (b. 1846) |
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| gaston thornicroft businessman and Coloured activist in Southern Rhodesia |
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| elizabeth thornicroft (died 1778) |
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| john thornicroft Peerage person ID=210536 |
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| thomas thornicroft person involved in the 17th century publishing trade |
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| gideon thornicroft Peerage person ID=711 |
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| edward thornicroft Peerage person ID=708 |
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| nanny thornicroft (died 1812) |
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| nick thornicroft English county cricketer (born 1985), GB (b. 1985) |
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