Surname Couplet (Couplet 
, Cuplet) , worldwide, is a rare family name. The cognomen Couplet is habitual in Belgium, where it is quite a rare surname, France, where it is a rare surname, and Argentina, where it is a very rare surname.
| VARIANT | COUNTRY |
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| Couplet | Argentina, Belgium, France |
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philippe couplet Flemish Jesuit missionary (1623–1693), FR (b. 1623) |
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| claude antoine couplet French mathematician, FR (b. 1642) |
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| pierre couplet FR (b. 1670) |
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| oscar couplet BE (b. 1850) |
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| maurice couplet Belgian politician, BE (b. 1911) |
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Mr, Cindy, Cyril, Brice, Denis, David, Dylan, Louis, Lydie, Joris, Herve, Vicky, Fanny, Maxime, Michel, Sabine, Sophie, Sylvie, Antony, Arnaud, Adrian, Adrien, Audie, Anais, Andre, Alain, Ms, Guy, Leo, Stã, Alex, Andy, Arno, Remy, Grã, Leon, Chloé, Loic, Jean, Jeff, Juan, Eddy, Emma, Ivan, Marie, Mauro, Sacha, Simon, Léa, and Celine