World 5

World 5 may refer to:


 * World 5 (SMB) – the fifth world from Super Mario Bros..
 * Sky Land – the fifth world of Super Mario Bros. 3.
 * World 5 (NSMB) – the fifth world in New Super Mario Bros..
 * World 5 (The Lost Levels) – the fifth world in Super Mario Bros.: The Lost Levels.