Last name Trépanier (Trépanier 
) , around the globe, is a rare surname. The surname Trépanier is characteristic of New Zealand, where it is quite a rare surname, Canada, and France, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Canada, New Zealand, and the United States. Very seldom, Trépanier is the forename as well as the last name.
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| Trépanier | France, United States, United Kingdom, New Zealand, Canada |
| romain trépanier Apr 1627 in Normandie - 20 Mar 1702 Château-Richer, Montmorency, Québec (b. 1627) |
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| françois trépanier 7 Apr 1664 Québec - 24 Aug 1738 Château-Richer, Montmorency, Québec (b. 1664) |
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| geneviève trépanier 18 Nov 1699 Châtereau-Richer, Montmorency - 11 Feb 1760 Ste.Geneviéve-de-Batiscan, Quebec (b. 1699) |
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léon trépanier Canadian politician, CA (b. 1881) |
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jean-guy trépanier Canadian politician, CA (b. 1932) |
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paul trépanier Canadian singer, CA (b. 1939) |
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pascal trépanier Canadian ice hockey player, CA (b. 1973) |
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| paul-olivier trépanier Canadian politician, CA (b. 1923) |
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| françois trépanier (born 1938) (b. 1938) |
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| maurice trépanier (born 1942) (b. 1942) |
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| hélène trépanier (born 1943) (b. 1943) |
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| violette trépanier Member of the National Assembly of Quebec, CA (b. 1945) |
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| josette trépanier (born 1946) (b. 1946) |
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| josette trépanier 1946 - present | Canadian | Painter, CA (b. 1946) |
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| micheline trépanier (born 1947) (b. 1947) |
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