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In the entire world, Mariuss (Маріус , Mariuss ) is a rare male first name. The first name Mariuss is characteristic of Eastern Europe, particularly Ukraine, where it is a rare male name. Much less frequently, Mariuss is the last name as well as the forename.
Mariuss is also a name for the fictitious and mythical characters: Marius Pontmercy , the fictional character from Les Misérables; Marius Black , character in Harry Potter and Marius de Romanus , character in The Vampire Chronicles.