Leviathan may refer to the following:
- Leviathan (Fundament) - 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.
- Leviathan (ship) - A massive Cabal starship that eats planets, residence of the exiled Emperor Calus.
- Leviathan, Eater of Worlds - A Raid Lair in Curse of Osiris.
- Leviathan, Spire of Stars - A Raid Lair the Warmind.
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