Surname Dudney (Dudney 
) , globally, is a rare cognomen. The surname Dudney is habitual in Jamaica, where it is a rare surname, the United States, and Australia. In absolute terms, this name is the most popular in the United States, the United Kingdom, and Australia. Very seldom, Dudney is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Dudney | Australia, Peru, Jamaica, United Kingdom, United States |
| william dudney English cricketer (1860-1922), GB (b. 1860) |
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| edna s. dudney (b. 1930) |
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| bill dudney (born 1967) (b. 1967) |
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| joan c. dudney |
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