Super Mario Galaxy 3 can refer to several games:
- Super Mario Galaxy 3 (NicoCorp)
- Super Mario Galaxy 3: Across New Dimensions
- Super Mario Galaxy 3: Celestial Cataclysm
- Super Mario Galaxy 3: Fall of the Universe
- Super Mario Galaxy 3: Mushroom Moon
- Super Mario Galaxy 3: Legend Of The Cosmo Wand
- Super Mario Galaxy 3: Time Trio!
- Super Mario Galaxy 3: The Travel Through Time
- Super Mario Galaxy 3: Revenge of the Koopa
- Super Mario Galaxy 3: Revenge of the Shroobs
- Super Mario Galaxy 3: Shining Stars
- Super Mario Galaxy 3: Six Player Mayham
- Super Mario Galaxy 3: Star Festival
- Agent's Super Mario Galaxy 3
- Ow's Super Mario Galaxy 3
- Super Mario Galaxy 3 (Hoola)
- Super Mario Galaxy 3 & Knuckles
- And for some reason, The Legend of Zelda: Forge of Creation
A similar title, "Super Mario Galaxy 3D", may also refer to:
- Super Mario Galaxy 3DS
- Super Mario Galaxy 3-D
- Super Mario Galaxy 3.5
- Super Mario Galaxy 3.5 (TheNintendoKing)