Surname Dumbleton (Dumbleton 
, Dumbel 
) , around the globe, is quite a rare family name. The cognomen Dumbleton is characteristic of the United Kingdom, where it is a rare surname, New Zealand, and Ireland. In absolute terms, it is commonest in the United Kingdom, the United States, and Australia. Much less frequently, Dumbleton is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Dumbleton | United Kingdom, Australia, United States, South Africa, Canada |
| Dumbel | India |
| john dumbleton British mathematician, GB (b. 1310) |
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| henry dumbleton Australian politician, AU (b. 1857) |
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| horatio dumbleton English cricketer (1858-1935), GB (b. 1858) |
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| arthur roderick dumbleton (born 1864) (b. 1864) |
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| lionel jack dumbleton New Zealand entomologist, NZ (b. 1905) |
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| douglas dumbleton Umpire (1918-2005), NZ (b. 1918) |
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| dennis dumbleton (b. 1937) |
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| walter douglas dumbleton Peerage person ID=589536 |
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| walter douglas dumbleton Peerage person ID=100582 |
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| cecil blanche dumbleton (died 1948) |
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| charles dumbleton Peerage person ID=195941 |
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| mabel dumbleton Peerage person ID=37405 |
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| douglas horatio dumbleton (died 1917) |
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| thomas dumbleton Peerage person ID=329157 |
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| gordon dumbleton Peerage person ID=566866 |
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