Last name Joncas (Joncas 
) , around the world, is quite a rare surname. The family name Joncas is characteristic of Canada, where it is quite a rare surname, Lithuania, and New Zealand. Not in comparison with a country's population, it most frequently occurs in Canada, the United States, and Lithuania.
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| Joncas | France, United States, Lithuania, Canada, New Zealand |
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louis-zéphirin joncas Canadian politician (1846-1903), CA (b. 1846) |
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| paul joncas director of the School of Surveying at Laval University, CA (b. 1883) |
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maurice joncas Canadian writer, CA (b. 1936) |
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| louis joncas land surveyor and director of the Surveying Department at Laval University from 1957 to 1963, CA (b. 1916) |
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marie-andrée joncas Canadian ice hockey player, CA (b. 1983) |
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pierre-philippe joncas figure skater, CA (b. 1985) |
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| jean-luc joncas Canadian politician, CA (b. 1936) |
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| michael joncas American composer, US (b. 1951) |
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| gilles joncas astrophysicist from Quebec, CA (b. 1955) |
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| philip joncas American television producer, US |
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| steve joncas researcher |
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| gabriel joncas performing artist in Canada |
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| julie joncas researcher |
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| marie-lyne joncas Canadian comedian, CA (b. 1987) |
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| guy joncas CA |
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