Cognomen Cavaller (Cavaller 
) , in the world, is a rare family name. The cognomen Cavaller is habitual in Spain, where it is a rare surname, Argentina, and France, where it is a very rare surname. Likewise, Cavaller is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Cavaller | United Kingdom, Spain, Argentina, Brazil, France |
| joan s. beltran i cavaller Spanish linguist, ES (b. 1933) |
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| mauro cavaller 1978- (b. 1978) |
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| maría del rosario pons cavaller Spanish painter, active 1907-1912 |
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| augustus cavaller Peerage person ID=315447 |
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| nora cavaller (died 1929) |
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| joan beltran i cavaller |
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