World 1-1

World 1-1 may refer to:


 * World 1-1 in Super Mario Bros.
 * World 1-1 in Super Mario Bros.: The Lost Levels.
 * World 1-1 in Super Mario Bros. 2
 * World 1-1 in Super Mario Bros. 3
 * Yoshi's Island 1, World 1-1 in Super Mario World
 * Stage 1-1 in Donkey Kong for the Game Boy.
 * Make Eggs, Throw Eggs, World 1-1 in Super Mario World 2: Yoshi's Island
 * Ba-dum BUM!, World 1-1 in Yoshi's Island DS
 * World 1-1 in New Super Mario Bros.
 * World 1-1 in New Super Mario Bros. Wii.
 * World 1-1 in Super Mario 3D Land
 * World 1-1 in New Super Mario Bros. 2.
 * Acorn Plains Way, World 1-1 in New Super Mario Bros. U.
 * Waddlewing Warning!, World 1-1 in New Super Luigi U.
 * Super Bell Hill, World 1-1 in Super Mario 3D World.
 * Yarn Yoshi Takes Shape!, World 1-1 in Yoshi's Woolly World.