Surname Gammon (Gamen 
, Gammon 
, Gambon 
) , all around the world, is a common cognomen. The family name Gammon is habitual in Jamaica, where it is quite a rare surname, the United Kingdom, and Canada. Not in comparison with a country's population, it is the most numerous in the United States, the United Kingdom, and Canada. Very seldom, Gammon is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Gamen | Philippines, France, Argentina, United Kingdom, United States |
| Gammon | Australia, Canada, Philippines, United Kingdom, United States |
| Gambon | Canada, Philippines, United Kingdom, United States, Democratic Republic of the Congo |
| 甘蒙 | China |
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irving p. gammon politician in Massachusetts, US, US (b. 1862) |
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richard von albade gammon Player of American football (1879-1897), US (b. 1879) |
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| warren gammon January 16, 1846–1924 (b. 1846) |
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| nathaniel gammon (b. 1846) |
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| samuel rhea gammon US (b. 1865) |
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| edward gammon Trinidadian cricketer, TT (b. 1876) |
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| reg gammon English painter and illustrator, GB (b. 1894) |
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| richard gammon British WWI flying ace, GB (b. 1898) |
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| david gammon UK author (1904-1996), GB (b. 1904) |
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alan gammon politician (b. 1955) |
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| russell gammon Canadian rower (1906-1968), CA (b. 1906) |
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| ethel wilson gammon American educator and museum director (1916-2009), US (b. 1916) |
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| billy gammon Brazilian missionary (1916-1974), BR (b. 1916) |
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| roland gammon American writer (b. 1919) |
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| reginald gammon African American artist, US (b. 1921) |
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