Cognomen Rubilar (Rubilar 
) , all around the world, is a common surname. The cognomen Rubilar is habitual in Latin America and the Caribbean, particularly Chile, where it is quite a common surname, Argentina, where it is quite a rare surname, and Uruguay, where it is a rare surname. In absolute terms, it is commonest in Latin America and the Caribbean, particularly Chile, Argentina, and Brazil. Very seldom, Rubilar is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Rubilar | Brazil, United States, Argentina, Chile, Spain |
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karla rubilar Chilean physician and politician, CL (b. 1977) |
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| juan rubilar Chilean judge, CL (b. 1938) |
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| juanito rubilar Argentinian association football player (1938-2000), AR (b. 1938) |
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| manuel rubilar Chilean association football player, CL (b. 1947) |
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| rosario rubilar UY (b. 1950) |
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| jaime rubilar Chilean association football player, CL (b. 1978) |
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| gonzalo rubilar researcher |
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| o. rubilar researcher ORCID ID = 0000-0002-5333-5774 |
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| tamara rubilar performing artist in Canada |
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| javiera f rubilar researcher |
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| miguel a rubilar researcher (ORCID 0000-0002-1711-7606) |
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| luzberto pantoja rubilar |
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| victor rubilar Argentine entertainer, AR |
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