World 2-3

World 2-3 may refer to:
 * World 2-3 in Super Mario Bros..
 * World 2-3 in Super Mario Bros.: The Lost Levels.
 * World 2-3 in Super Mario Bros. 2.
 * World 2-3 in Super Mario Bros. 3.
 * Donut Plains 3, World 2-3 in Super Mario World.
 * What's Gusty Taste Like?, World 2-3 in Super Mario World 2: Yoshi's Island.
 * World 2-3 in New Super Mario Bros..
 * Windblown Wilderness, World 2-3 in Yoshi's Island DS.
 * World 2-3 in New Super Mario Bros. Wii.
 * World 2-3 in Super Mario 3D Land.
 * World 2-3 in 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.
 * Seesaw Scramble, World 2-3 in Yoshi's New Island.
 * World 2-3 in Puzzle & Dragons: Super Mario Bros. Edition.
 * Walk the Chomp to Unwind, World 2-3 in Yoshi's Woolly World.
 * World 2-3 in Mario Party: Star Rush.