GNS Isaiah MacKenzie was a Honor Harrington-class superdreadnought of the Grayson Space Navy.
Named in honor of Isaiah Mackenzie, a legendary general of the Civil War, she was commanded by Captain Jason Haskins and assigned to Battle Division 62 in 1914 PD. She also served was Rear Admiral Aristides Trikoupis' flagship of Battle Division 62 and participated in the Battle of Elric.
She was known to her crew as "Izzie". (HH9)