First Fleet (disambiguation)
- 1st Air Fleet of the Imperial Japanese Navy
- 1st Fleet (Imperial Japanese Navy)
- First Fleet
- First Fleet (United Kingdom)
- First Fleet of South Australia
- Home Fleet
- Legio I Adiutrix
- Luftflotte 1
- Māori migration canoes
- Republic of Korea Navy
- Second Fleet (disambiguation)
- Sydney Ferries
- United States First Fleet