Last name Beauséjour (Beauséjour 
) , across the world, is a rare cognomen. The cognomen Beauséjour is habitual in New Zealand, where it is a rare surname, Canada, and France, where it is a very rare surname. Much less frequently, Beauséjour is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Beauséjour | Canada, France, New Zealand, United States |
Beausejour, and Bosejour
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antoine boureau de beauséjour French politician (1771-1855), FR (b. 1771) |
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luc beauséjour Canadian harpsichordist, CA (b. 1958) |
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| jacques beauséjour Canadian politician, CA |
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| madeleine beauséjour film director and editor |
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| christian beauséjour researcher (ORCID 0000-0002-1693-5172) |
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| philippe-antoine beauséjour researcher (ORCID 0000-0002-0314-7660) |
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| édith beauséjour actor in the theatrical field in Quebec |
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| audrey-louise beauséjour performing artist in Canada |
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| mathieu beauséjour CA (b. 1970) |
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| marie beauséjour |
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| éric beauséjour |
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Luc, Ruddy, Réal, Denis, Danie, David, Dahud, Diane, Louis, Joël, Julie, Nancy, Waldo, Éric, Martin, Maxime, Michel, Samuel, Sophie, André, Audrey, Carole, Kevin, Clara, Cathy, Carol, Eng, Ing, Marc, Anne, Paul, Rita, Gaby, Lise, Lyne, Jean, Claude, Eric, Marco, Sarah, Simon, Serge, Sonia, Steve, Svani, Alain, Anais, Annie, Yvan, and Cyndie