World 3 is the third world that appears in Super Mario 3D World.
World 3 is mainly an ice-themed world. A Magikoopa can be seen on the world map as well.
- World 3-1: Snowball Park
- World 3-2: Chain-Link Charge
- World 3-3: Shifty Boo Mansion
- World 3-4: Pretty Plaza Panic
- World 3-A: Magikoopa Blockade
- World 3-5: Pipeline Lagoon
- World 3-6: Mount Must Dash
- World 3-7: Switchboard Falls
- World 3-Train: The Bullet Bill Express
- World 3-Toad: Captain Toad Makes A Splash
- World 3-B: A Banquet with Hisstocrat