Surname Bettencourt (Bettencourt 
, Béthencourt 
) , in the entire world, is a common cognomen. The cognomen Bettencourt is habitual in Cabo Verde, where it is a common surname, Portugal, where it is quite a common surname, and Angola, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in the United States, Portugal, and Angola.
| VARIANT | COUNTRY |
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| Bettencourt | Portugal, Angola, Canada, United States, Cabo Verde |
| Béthencourt | Spain, France |
Berto, Betancourt, Bethencourt, Betto, Cort, and Беттенцоурт
| jean ii de bettencourt (b. 1310) |
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| gaspard de bettencourt French noble, FR (b. 1440) |
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francisco de lemos bettencourt politician, PT (b. 1779) |
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| manuel de ávila de bettencourt (b. 1744) |
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nicolau anastácio de bettencourt Portuguese politician (1810-1874), PT (b. 1810) |
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| manuel inácio de bettencourt (b. 1761) |
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jacinto augusto de santana e vasconcelos moniz de bettencourt Portuguese politician, PT (b. 1824) |
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francisco de paula de barcelos machado de bettencourt politician (1831-1907), PT (b. 1831) |
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| manuel ávila de sousa bettencourt (b. 1777) |
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| josé leite de bettencourt (b. 1778) |
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| antónio da cunha silveira de bettencourt PT (b. 1782) |
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| josé inácio bettencourt Portuguese military personnel, PT (b. 1792) |
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josé júlio de bettencourt rodrigues Portuguese writer, PT (b. 1843) |
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diogo de barcelos machado bettencourt Portuguese politician, PT (b. 1847) |
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| josé de sousa de bettencourt (b. 1790) |
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