World 6

World 6 (also written as World Six) can refer to:
 * World 6 (Super Mario Bros.) - World 6 of Super Mario Bros.
 * World 6 (Super Mario Bros.: The Lost Levels) - World 6 of Super Mario Bros.: The Lost Levels.
 * World 6 (Super Mario Bros. 2) - World 6 of Super Mario Bros. 2.
 * Ice Land - World 6 of Super Mario Bros. 3
 * Chocolate Island - World 6 of Super Mario World.
 * Parsley Woods - World 6 of Wario Land: Super Mario Land 3.
 * World 6 (Super Mario World 2: Yoshi's Island) - World 6 and the final World of Super Mario World 2: Yoshi's Island.
 * Land's End - World 6 of Super Mario RPG: Legend of the Seven Stars, according to the Shogakukan guide.
 * Nimbus Land - World 6 of Super Mario RPG: Legend of the Seven Stars, according to the Player's Guide.
 * Twilight City - World 6 and the final World of Mario vs. Donkey Kong.
 * Gleam Glacier - World 6 of Super Princess Peach.
 * World 6 (New Super Mario Bros.) - World 6 of New Super Mario Bros.
 * World 6 (New Super Mario Bros. Wii) - World 6 of New Super Mario Bros. Wii.
 * World 6 (Super Mario Galaxy 2) - World 6 of Super Mario Galaxy 2.
 * Cliff - World 6 of Donkey Kong Country Returns.
 * World 6 (Super Mario 3D Land) - World 6 of Super Mario 3D Land.
 * World 6 (New Super Mario Bros. 2) - World 6 of New Super Mario Bros. 2.
 * World 6 (Paper Mario: Sticker Star) - World 6 of Paper Mario: Sticker Star.
 * Rock-Candy Mines - World 6 of New Super Mario Bros. U.
 * World 6 (Super Mario 3D World) - World 6 of Super Mario 3D World.
 * Donkey Kong Island - World 6 of Donkey Kong Country: Tropical Freeze.
 * World 6 (Yoshi's New Island) - World 6 of Yoshi's New Island.
 * Twilight Valley - World 6 of Mario vs. Donkey Kong: Tipping Stars.
 * World 6 (Puzzle & Dragons: Super Mario Bros. Edition) - World 6 of Puzzle & Dragons: Super Mario Bros. Edition.
 * World 6 (Super Mario Run) - World 6 of Super Mario Run.
 * World 6 (Dr. Mario World) - World 6 of Dr. Mario World.