The Alliance Fleet, also called the Rebel Fleet, the Alliance Starfleet, or simply Starfleet, referred to the various spacecraft operated jointly by the Alliance to Resore the Republic in their struggle against the Galactic Empire. Although it was minuscule in size compared to the Imperial Navy, and in many cases its ships were of non-military design, the fleet proved to be a thorn in the Empire's side throughout the Galactic Civil War.

Following the Battle of Endor and the creation of the New Republic, the Rebel fleet was transformed into the New Republic Defense Fleet.