Family name Longchamp (Longchamp 
) , worldwide, is quite a rare last name. The surname Longchamp is characteristic of Switzerland, where it is quite a rare surname, Haiti, and France, where it is a rare surname. In absolute terms, the name is most common in Switzerland, France, and the United States. Very seldom, Longchamp is the forename as well as the last name.
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| Longchamp | Switzerland, France, Haiti, United States, Democratic Republic of the Congo |
| william de longchamp Lord Chancellor of England; Bishop of Ely; Chief Justiciar of England, FR (b. 1101) |
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| osbert de longchamp Anglo-Norman administrator (b. 1150) |
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| ralph of longchamp English scholastic philosopher (b. 1155) |
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| sébastian g. longchamp (b. 1718) |
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| pierre barthelemy pennier de longchamp botanist, FR (b. 1743) |
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| pierre claude charles leboucher du longchamp French politician, FR (b. 1758) |
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| françois-nicolas longchamp Swiss politician (1763-1809), CH (b. 1763) |
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| catherine julie longchamp Swiss artist (1806-1879) (b. 1806) |
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| henriette de longchamp French artist, FR (b. 1818) |
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| charles longchamp Swiss artist, 1841-1898, CH (b. 1841) |
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albert longchamp Swiss writer, CH (b. 1941) |
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claude longchamp Swiss historian and political scientist, CH (b. 1957) |
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françois longchamp Swiss politician, CH (b. 1963) |
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| philippe longchamp French poet, FR (b. 1939) |
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| christian longchamp Belgian dramaturge, BE |
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