World 8-1

World 8-1 may refer to the following:
 * World 8-1 in Super Mario Bros..
 * World 8-1 in Super Mario Bros.: The Lost Levels.
 * World 8-1 in Super Mario Bros. 3.
 * World 8-1 in New Super Mario Bros..
 * World 8-1 in New Super Mario Bros. Wii.
 * World 8-1 in Super Mario 3D Land.
 * Meteor Moat, World 8-1 in New Super Mario Bros. U.
 * Magma Moat, World 8-1 in New Super Luigi U.
 * World 8-1 in Puzzle & Dragons: Super Mario Bros. Edition.
 * 5-3 Remix (Shoe Goombas), World 8-1 in Super Mario Maker.
 * World 8-1 in Super Mario Maker for Nintendo 3DS.