Cognomen Peñuelas (Peñuelas 
) , in the world, is a rare surname. The family name Peñuelas is characteristic of Spain, where it is a rare surname, Mexico, and Argentina, where it is a very rare surname. Measured by absolute frequency, the name is most common in Mexico, Spain, and the United States. Also, Peñuelas is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Peñuelas | United States, Mexico, Spain, Argentina |
| lino peñuelas y fornesa ES (b. 1830) |
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josep peñuelas Spanish ecologist, ES (b. 1958) |
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| mayra gisela peñuelas acuña Mexican politician, MX (b. 1963) |
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| núria peñuelas researcher, ES |
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| oscar peñuelas researcher (ORCID 0000-0003-1484-3933) |
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| iván peñuelas researcher |
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| claudia g peñuelas rivas researcher |
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| maría peñuelas researcher (ORCID 0000-0003-3835-2901) |
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| blanca peñuelas Spanish athlete and teacher, ES (b. 1996) |
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