Stabskapitän (en: Staff captain), in the cavalry also Stabsrittmeister (en: "Staff riding master" or "Staff cavalry master"), or Kapitänleutnant (en: Captain lieutenant) , was a historic military rank in the Prussian Army. In reference to the German Stabskapitän the equivalent rank in the Imperial Russian Army used to be the rank Stabs-kapitan (Russian: штабс-капитан).