Nautilus may refer to:
- The airship from Final Fantasy III.
- The location from Final Fantasy VIII.
- The location and theme from Final Fantasy XIII.
- The creature from Final Fantasy XIV.
Etymology
The Nautilus is the fictional submarine captained by Nemo featured in Jules Verne's novels Twenty Thousand Leagues Under the Sea and The Mysterious Island. Verne named the Nautilus after Robert Fulton's real-life submarine Nautilus.