Cognomen Barniol (Barniol 
) , across the world, is a rare family name. The cognomen Barniol is characteristic of Spain, where it is a rare surname, France, and Germany, where it is an extremely rare surname. Also, Barniol is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Barniol | Spain, France, Mexico, United States, Germany |
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albert barniol gil Spanish meteorologist and television presenter, ES (b. 1972) |
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| yves barniol French politician, FR (b. 1954) |
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| marta barniol prat Spanish politician, ES |
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| montserrat barniol carcasona Spanish politician, ES |
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| n barniol researcher ORCID ID = 0000-0001-6325-2166 |
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