1st fleet
1. Fleet stands for:
- 1st Fleet (Japanese Empire) , fleet of the Imperial Japanese Navy
- 1st Fleet (South Korea) , fleet of the South Korean Navy
- 1. Luftflotte , Luftflotte of the Imperial Japanese Navy, see Kidō Butai
- First Fleet , fleet of ships from England to Australia
- First Fleet (United Kingdom) , Royal Navy fleet
- United States First Fleet , Fleet of US Navy
- First Fleet of South Australia , fleet of South Australian Company ships
- Luftflotte 1 , Luftflotte of the Luftwaffe of the Wehrmacht
- Legio I Adiutrix , Roman fleet
