The Seventh Battle Cruiser Division is a unit within the Lost Fleet. At the time of the flight from the Syndic home system, the Seventh Battle Cruiser Division consisted of the battle cruisers Opportune, Brilliant, and Inspire , commanded by Captain Sandra Kila on the Inspire.

After the Opportune was destroyed during the battle at Cavalos, the remaining ships survived to reach Varandal in Alliance space. There they were re-assigned to the reconstitued First Battle Cruiser Division as part of the Fleet reorganization, and the Seventh Division was disestablished.