HMS Royalist was a Reliant-class battlecruiser of the Royal Manticoran Navy.
Commanded by Captain Ellis, she was assigned to Task Force 34. While in the Silesian Confederacy, she was engaged by a four-ship IAN light cruiser division in the Walther System. (HH10)
In 1920 PD, she remained in the Confederacy, attached to the newly established Ninth Fleet, and assisted in the pacification of the newly acquired Manticoran territories in the area. In the course of that mission, Royalist participated in the pursuit of the former Havenite Office of State Security official Marcus Bartoli. (HHA7.3: TSC)