Family name Sanahuja (Sanahuja 
) , in the world, is quite a rare cognomen. The cognomen Sanahuja is habitual in Spain, where it is quite a rare surname, Costa Rica, where it is a rare surname, and Argentina. Not in comparison with a country's population, it is commonest in Spain, France, and Argentina. Likewise, Sanahuja is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Sanahuja | France, Argentina, Spain, Venezuela, Costa Rica |
| manuel fernández sanahuja Spanish artist, 1835-1884 (b. 1835) |
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| francesc sanahuja pifarré ES (b. 1878) |
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| ramon sanahuja i marcé Roman Catholic bishop (1890-1970), ES (b. 1890) |
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| xavier sanahuja i forgas Spanish military personnel (1897-1959), ES (b. 1897) |
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| francesco sanahuja Spanish footballer, ES (b. 1899) |
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| francesc sanahuja Spanish association football player, ES (b. 1900) |
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| daniel sanahuja i capella Spanish composer (1902-2004), ES (b. 1902) |
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juan claudio sanahuja AR (b. 1947) |
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| antoni casanovas i sanahuja Spanish trade unionist, ES (b. 1918) |
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josé antonio sanahuja ES (b. 1962) |
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| david sanahuja i saperas (b. 1915) |
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| pepita llunell i sanahuja Spanish composer and businessperson, ES (b. 1926) |
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| joaquim gomis i sanahuja Spanish journalist, text editor and essayist (1931-2013), ES (b. 1931) |
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| mariona sanahuja ES (b. 1924) |
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| empar vicent sanahuja (b. 1935) |
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