Swordfish has several meanings:
- A type of fish, see Swordfish
- The name of a spaceship belonging to Spike Spiegel, one of the main characters in the anime series Cowboy Bebop, see swordfish (spaceship)
- A British carrier-based, bi-plane bomber whose most important uses were in sinking the German battleship Bismarck and in the Battle of Taranto, see Fairey Swordfish
- A movie staring John Travolta, see swordfish (movie)
- The name of two submarines in the United States Navy, see USS Swordfish