The Ninth Fleet was a fleet of the Imperial Navy during and beyond the reign of the Galactic Empire. The fleet's flagship was the Mortifier, which was commanded by Grand Admiral Tedic Peldton. At its height, the fleet consisted of three Imperial I-class Star Destroyers, ten Imperial II-class Star Destroyers, one Dreadnought-class Heavy Cruiser and twelve Gozanti-class cruisers.
The fleet was assigned to the Grand Admiral by 0 BBY and participated in the later stages of the Battle of Scarif. Over the next 4 years, the fleet was deployed in the Outer Rim to prevent insurgent activity. After the initiation of the Contingency, the ninth fleet was deployed (along with the 14th Legion to the Ostonian sector of the Outer Rim in order to deal with the Zystian Empire, which had become a great threat.
The war lasted for a year and included the battles of Kessel sector, Polodian and Zystia. In 8 ABY, the remaining fleet was destroyed by Kichur Rahm's squad of bounty hunters in the Battle of Kijimi.