Super Mario Bros. 3 may refer to:
- SMB3:Super Mario Bros. 3 - The original 1988 game for the Nintendo Entertainment System.
- SMM:Super Mario Bros. 3 - The game style in the 2015 game Super Mario Maker for the Wii U.
- SMM2:Super Mario Bros. 3 - The game style in the 2019 game Super Mario Maker 2 for the Nintendo Switch.