Mario Bros.

Mario Bros. may refer to:
 * Mario Bros., the arcade game released before the Super Mario Bros. NES title.
 * Mario Bros., the Game & Watch title which featured Mario and Luigi working together in a factory. It was later re-created for Game & Watch Gallery 3 and Game & Watch Gallery 4.
 * Mario Bros., a stage in Super Smash Bros. Brawl.
 * Super Mario Bros., one of the first Mario platformers, first released for the Nintendo Entertainment System.
 * Mario Brothers, a microgame from WarioWare: Twisted!
 * Mario Bros., a microgame in WarioWare: D.I.Y. Showcase
 * Mario and Luigi, the heroes of the Mushroom Kingdom who are often called the "Mario Bros." or the "Super Mario Bros."
 * Baby Mario and Baby Luigi, the baby versions of Mario and Luigi, respectively.