Super Mario Bros. 2 is the North American sequel to Super Mario Bros. for the Nintendo Entertainment System.

Super Mario Bros. 2 may also refer to:

• The Lost Levels, the original, Japan-exclusive sequel to Super Mario Bros. with the same name as the North American sequel; later re-released outside Japan as The Lost Levels in Super Mario All-Stars for the Super Nintendo Entertainment System
• New Super Mario Bros. 2, the second handheld title in the New Super Mario Bros. series and the third game in the series
• Mario Bros. II, an unofficial spiritual successor to the Mario Bros. Game & Watch game

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