Leviathan

Leviathan may refer to the following:
 * Leviathan (creature) - A massive aquatic organism that dwelled within Fundament, a disciple of the Traveler
 * Leviathan (Titan) - Another massive aquatic organism, likely unrelated to the previous, found on Titan
 * Leviathan (raid) - A raid that takes place on Emperor Calus's personal starship
 * The Leviathan - A massive Cabal starship that eats planets, residence of the exiled Emperor Calus