Last name Belmont (Belmont 
, Белмонт, בלמונט 
) , around the world, is a common cognomen. The family name Belmont is habitual in Seychelles, where it is quite a common surname, Paraguay, where it is quite a rare surname, and Mexico. Measured by absolute frequency, it is commonest in Mexico, the United States, and Brazil. Very seldom, Belmont is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Belmont | Paraguay, Brazil, Mexico, France, United States |
| בלמונט | Israel |
| konrad von belmont bishop of the Roman Catholic Church, DE (b. 1250) |
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francois vachon de belmont Catholic bishop, FR (b. 1645) |
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| martin belmont (1596-1673), CH (b. 1596) |
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| charles-françois de machault de belmont French naval officer and governor general of the French Antilles (b. 1640) |
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| johann walter belmont (1661-1739), CH (b. 1661) |
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| dionigi gioacchino belmont Roman Catholic bishop (b. 1664) |
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| françois de briançon de vachon de belmont FR (b. 1721) |
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sophie belmont FR (b. 1781) |
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| johann walter rudolf belmont (1747-1815), CH (b. 1747) |
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| jean-eléonor montanier de belmont Roman Catholic bishop (b. 1756) |
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august belmont United States banker, financier and diplomat (1813-1890), US (b. 1813) |
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| jean-éléonore montanier de belmont FR (b. 1756) |
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| louis joséphine sarazin de belmont French artist (b. 1790) |
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pierre-marie belmont FR (b. 1838) |
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august belmont, jr. American financier, US (b. 1853) |
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