Cognomen Marcó (Marcó 
) , in the world, is a rare family name. The surname Marcó is habitual in Bolivia, where it is a rare surname, Spain, and Argentina. Also, Marcó is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Marcó | Argentina, Dominican Republic, Spain, Bolivia, Colombia |
| francesc beringola marcó Spanish painter, ES (b. 1804) |
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| prudenci marcó i casas ES (b. 1796) |
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celestino marcó Argentinian politician, AR (b. 1864) |
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| josé masgoret y marcó Spanish warlord, ES (b. 1820) |
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| antoni beringola marcó ES (b. 1824) |
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| hilario marcó (b. 1827) |
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| ramon puig i marcó ES (b. 1870) |
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alberto marcó Argentinian actor (1940-2005), AR (b. 1940) |
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soledad marcó Argentinian actor, AR (b. 1950) |
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| héctor marcó Argentine composer (1906-1987), AR (b. 1906) |
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| gloria marcó Argentinian actor, AR (b. 1952) |
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