Marius Pontmercy, a principal character in Les Misérables

Marius the Epicurean, novel and its hero by Walter Pater

Marius Petipa (1819-1910), French-Russian ballet dancer / choreographer

Gaius Marius (157 BC — 86 BC), Roman general

Richard Marius (1933-1999), Reformation scholar

Marius Borg Høiby (b.1997), first child of Mette-Marit, Crown Princess of Norway

Marius Lăcătuş (b.1964), Romanian footballer

Marius de Romanus, a character in the Vampire Chronicles universe created by Anne Rice.

Marius Maximus (fl. early 3rd century), Roman senator and biographer of Emperors

Gaius Marius Victorinus (4th century) Roman philosopher

Johann Simon Mayr (1763-1845), German composer

Marius (crater), a lunar impact crater

"Marius" (Anderson), a science fiction story by Poul Anderson.

Marius Trésor, French footballer

Simon Marius (1573–1624), German astronomer (Simon Mayr)

Marius (film), written by Marcel Pagnol.

Marius Urzică, Romanian gymnast

Clinton Marius (b.1966), South African performer and writer

Gaius Marius the Younger, son of Gaius Marius

Marius Ebbers (b.1978), German footballer

Marius von Mayenburg (b.1972), German actor and playwright

Marcus Aurelius Marius, (d.268), Gallic Emperor

Marius Müller-Westernhagen (b.1948), German musician and actor

Marius Constant (1925-2004), French composer and conductor