Cognomen Cunniffe (Cunniffe 
) , all over the world, is quite a rare last name. The cognomen Cunniffe is habitual in Ireland, where it is quite a common surname, New Zealand, where it is a rare surname, and the United Kingdom. In absolute terms, it is the most numerous in Ireland, the United Kingdom, and the United States.
| VARIANT | COUNTRY |
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| Cunniffe | United Kingdom, United States, South Africa, Ireland, Australia |
| james cunniffe American bank robber, US (b. 1895) |
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| paul cunniffe British singer-songwriter, GB (b. 1961) |
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| emma cunniffe Film, stage and television actress, GB (b. 1973) |
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| brian cunniffe researcher |
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| nick cunniffe researcher (ORCID 0000-0002-7562-2838) |
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| nik j. cunniffe researcher |
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| harriet cunniffe researcher (ORCID 0000-0002-8580-7692) |
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| bernard cunniffe English rugby league footballer, GB |
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| tom cunniffe Gaelic footballer, IE |
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| grainne m. cunniffe researcher |
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| ronan cunniffe researcher |
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| simon cunniffe GB (b. 1974) |
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