Family name Duffell (Duffell 
) , in all the world, is quite a rare cognomen. The family name Duffell is habitual in the United Kingdom, where it is a rare surname, New Zealand, and Australia. Measured by absolute frequency, it is the most numerous in the United Kingdom, the United States, and Australia.
| VARIANT | COUNTRY |
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| Duffell | United Kingdom, Australia, United States, Canada, New Zealand |
| peter duffell British film director, GB (b. 1922) |
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| peter duffell British Army general, GB (b. 1939) |
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| joseph duffell Australian politician, GB |
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| ian duffell British businessman, GB |
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| mary duffell Peerage person ID=294373 |
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| stephen duffell researcher |
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| judith duffell Peerage person ID=2857 |
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| lynsey d duffell researcher |
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| john duffell Peerage person ID=345387 |
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| hayley j. duffell researcher |
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| charlie duffell cricketer (born 1986), GB (b. 1986) |
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