Blue world

Blue world may refer to:


 * "Blue World" (Mac Miller song), 2020
 * "Blue World" (Super Junior song), 2013
 * "Blue World" (The Moody Blues song), 1983
 * The Blue World, 1966 SF novel by Jack Vance
 * Jonathan Bird's Blue World, underwater kids' educational TV show
 * Endless Ocean 2: Adventures of the Deep, 2007 Wii video game released as Endless Ocean: Blue World in North America
 * Blue World (album), a 2019 album of 1964 John Coltrane recordings