Surname Plaisant (Pleasant 
, Plaisant 
, Plezar 
) , in all the world, is quite a common cognomen. The last name Plaisant is characteristic of the United States, where it is quite a rare surname, France, and Belgium. Measured by absolute frequency, it most frequently occurs in the United States, France, and Nigeria. Very seldom, Plaisant is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pleasant | United Kingdom, Myanmar, Nigeria, Canada, United States |
| Plaisant | United Kingdom, Belgium, United States, Democratic Republic of the Congo, France |
| Plezar | India |
Plaisantin, and สุภาพ
| isidore plaisant Belgium magistrate, BE (b. 1795) |
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marcel plaisant French politician, FR (b. 1887) |
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| gustave plaisant French engineer and essayist, FR (b. 1873) |
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| ayrton plaisant Brazilian military official (1892-1959), BR (b. 1892) |
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catherine plaisant French American computer scientist, FR (b. 1957) |
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| rené plaisant Member of the French Resistance, FR (b. 1915) |
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| robert plaisant born:1917-09-00|died:1997-01-01|; Plaisant, Robert 1917-1997; Plaisant, Robert, 1918?-1997 (b. 1917) |
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| françois plaisant French ambassador, FR (b. 1932) |
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| jean plaisant FR (b. 1925) |
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| odile plaisant researcher (b. 1950) |
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| philippe plaisant French politician, FR (b. 1956) |
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| sylvie plaisant French table tennis player, FR (b. 1972) |
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| claudio plaisant researcher (ORCID 0000-0002-1293-6717) |
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| françois-claude plaisant French official |
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| michèle plaisant Thèse de 3ème cycle Université de Valenciennes et du Hainaut-Cambrésis 1980 |
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