Cognomen Margalef (Margalef 
) , in all the world, is quite a rare surname. The surname Margalef is habitual in Andorra, where it is quite a common surname, Uruguay, where it is quite a rare surname, and Spain. Measured by absolute frequency, it most frequently occurs in Spain, France, and Argentina. Likewise, Margalef is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Margalef | France, Argentina, Spain, Switzerland, Uruguay |
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ramon margalef Catalan biologist (1919-2004), ES (b. 1919) |
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manel margalef ES (b. 1963) |
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| mario margalef cyclist, UY (b. 1943) |
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| joan manuel margalef miralles Spanish politician and architect, ES (b. 1949) |
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| miguel margalef Uruguayan cyclist, UY (b. 1956) |
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| agustin margalef cyclist, UY (b. 1977) |
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| maria margalef researcher |
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| mercè margalef researcher |
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| olga margalef researcher |
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| juan margalef Spanish mathematician and physicist, ES (b. 1988) |
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| josé bayo margalef |
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| juan de dios rivas margalef Spanish footballer, ES (b. 1999) |
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