Look up aquanaut in Wiktionary, the free dictionary.
An aquanaut is a diver who remains at depth underwater for longer than 24 hours.
Aquanaut may also refer to:
- The Aquanauts, a 1960–1961 American adventure TV series
- Aquanauts (film), a 1979 Soviet science fiction film
- Lego Aquazone, Lego toys