World 2-3

World 2-3 may refer to:
 * World 2-3 (Super Mario Bros.)
 * World 2-3 (Super Mario Bros.: The Lost Levels)
 * World 2-3 (Super Mario Bros. 2)
 * World 2-3 (Super Mario Bros. 3)
 * What's Gusty Taste Like?, World 2-3 in Super Mario World 2: Yoshi's Island.
 * Windblown Wilderness, World 2-3 in Yoshi's Island DS.
 * World 2-3 (New Super Mario Bros.)
 * World 2-3 (New Super Mario Bros. Wii)
 * World 2-3 (Super Mario 3D Land)
 * World 2-3 (New Super Mario Bros. 2)
 * Fire Snake Cavern, World 2-3 in New Super Mario Bros. U.
 * Piranhas in the Dark, World 2-3 in New Super Luigi U.
 * Shadow-Play Alley, World 2-3 in Super Mario 3D World.