Cognomen Mārcus (Marc 
, Marcus , Mareko 
) , in the world, is a widespread surname. The last name Mārcus is habitual in British Virgin Islands, where it is quite a common surname, Luxembourg, and Spain (explore the name in all countries). In absolute terms, it is the most numerous in Nigeria, Spain, and the United States. More frequently, Mārcus is the forename as well as the last name.