Surname De Marco (Demarco 
, De Marco ) , across the world, is a common last name. The cognomen De Marco is habitual in Malta, where it is quite a common surname, Italy, and Argentina (explore the name in all countries). In absolute terms, it is the most numerous in Italy, the United States, and Argentina. Very seldom, De Marco is the forename as well as the last name.
| francescantonio de marco bishop of the roman-catholic church (1628-1681) (b. 1628) |
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| marco antonio de marco archbishop of the Roman Catholic Church (b. 1678) |
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gustavo de marco Italian actor, IT (b. 1883) |
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michele de marco Italian poet, writer and journalist (1884-1954), IT (b. 1884) |
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| giuseppe de marco Italian aviator, IT (b. 1894) |
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| vittorio de marco Italian classical philologist (1899-1988), IT (b. 1899) |
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| angelo de marco Italian magistrate, IT (b. 1902) |
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mario de marco Maltese politician, MT (b. 1965) |
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| francisco de marco Brazilian serial killer, BR (b. 1922) |
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andrea de marco Italian association football referee, IT (b. 1973) |
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alessandro de marco Italian actor, IT (b. 1979) |
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| giovanni de marco Italian botanist (1939-), IT (b. 1939) |
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| pietro de marco Italian philosopher, sociologist and university professor (1941-), IT (b. 1941) |
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vernon de marco morlacchi Slovak association football player, AR (b. 1992) |
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| eugenio de marco Italian jurist and university professor (1943-), IT (b. 1943) |
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