A Starfleet Fleet is a military unit consisting of hundreds of Starfleet starship vessels operating in groups, wings and flights, usually based at a Federation starbase or member planet's sector.
In the late 24th century, several Starfleet Fleets were major participants in the hostilities brought about by the Dominion War. (Star Trek: Deep Space Nine)
List of units
- Starfleet 2nd Fleet
- Starfleet 3rd Fleet
- Starfleet 4th Fleet
- Starfleet 5th Fleet
- Starfleet 6th Fleet
- Starfleet 7th Fleet
- Starfleet 8th Fleet (Andoria; Orben Sel, CO)
- Starfleet 9th Fleet
- Starfleet 10th Fleet (Betazed; Masc, CO)
- Starfleet 12th Fleet (Starbase 19)
- Starfleet 13th Fleet
- Starfleet 15th Fleet
- Starfleet 18th Fleet
- Starfleet 31st Fleet