Family name Losilla (Losilla 
) , all around the world, is a rare last name. The cognomen Losilla is habitual in Costa Rica, where it is quite a rare surname, Spain, and Panama, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Spain, France, and Brazil. Also, Losilla is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Losilla | Costa Rica, Spain, France, Brazil, Argentina |
| luis lozano losilla Spanish artist (b. 1887) |
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anthony losilla French footballer, FR (b. 1986) |
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| carlos losilla writer, teacher, ES (b. 1960) |
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| carlos alejaldre losilla ES (b. 1952) |
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| esteban peralta losilla Spanish jurist, ES (b. 1964) |
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| guillermo losilla researcher |
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| josep-maria losilla researcher ORCID ID = 0000-0002-5140-5847 |
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| enrique r losilla researcher |
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| mauricio losilla researcher (ORCID 0000-0003-0695-3120) |
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