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Cognomen Vîlcu (Vilcu , Vîlcu ) , in the world, is quite a common last name. The cognomen Vîlcu is habitual in Aland Islands, where it is quite a common surname, Romania, and Moldova. Not in comparison with a country's population, it is commonest in Romania, Moldova, and Italy. Very seldom, Vîlcu is the forename as well as the last name.