Mario Bros. (disambiguation)

Mario Bros. could refer to:
 * Mario Bros. - an arcade game released before Super Mario Bros. for the Nintendo Entertainment System.
 * Mario Bros. - a Game & Watch title featuring Mario and Luigi working in a factory, later re-created for Game & Watch Gallery 3 and Game & Watch Gallery 4.
 * Mario Bros. - a stage that appears in Super Smash Bros. Brawl and Super Smash Bros. Ultimate.
 * Mario Brothers - a microgame featured in WarioWare: Twisted!
 * Mario Bros. - a microgame featured in WarioWare: D.I.Y. Showcase.
 * Mario Bros. - a microgame featured in WarioWare Gold.
 * Mario and Luigi - the two titular characters who are referred to collectively as the "Mario Bros".