HMS Perseus was a Nike-class battlecruiser of the Royal Manticoran Navy. Completed in 1921 PD and first commanded by Captain (SG) Esmerelda Dunne, the vessel was assigned to Battlecruiser Squadron 106's second division, and sent to the Talbott Quadrant. Perseus fought in the Second Battle of New Tuscany and the Battle of Spindle. (SI2, HH12)