World 2-4

World 2-4 may refer to:


 * World 2-4 (Super Mario Bros.)
 * World 2-4 (Super Mario Bros.: The Lost Levels)
 * World 2-4 (Super Mario Bros. 3)
 * Bigger Boo's Fort, World 2-4 in Super Mario World 2: Yoshi's Island.
 * Hector the Reflector's Haunted House, World 2-4 in Yoshi's Island DS.
 * World 2-4 (New Super Mario Bros.)
 * World 2-4 (New Super Mario Bros. Wii)
 * World 2-4 (Super Mario 3D Land)
 * World 2-4 (New Super Mario Bros. 2)
 * Spike's Spouting Sands, World 2-4 in New Super Mario Bros. U.
 * The Walls Have Eyes, World 2-4 in New Super Luigi U.