20,000 Leagues Under the Sea (disambiguation)

20,000 Leagues Under the Sea may refer to:
 * 20,000 Leaks Under the City, the Teenage Mutant Ninja Turtles episode.
 * 20,000 Koopas Under the Sea, The New Super Mario Bros. Super Show! episode.
 * 20,000 Patties Under the Sea, the SpongeBob SquarePants episode.