Linienschiffsleutnant is a German language variant of the naval officer rank ship-of-the-line lieutenant.

Ship-of-the-line lieutenant; Hungarian: Sorhajóhadnagy) was an officer rank in the Austro-Hungarian Navy.

It was equivalent to Hauptmann of the Austro-Hungarian Army, as well to Kapitänleutnant of the Imperial German Navy.

The rank designation was used continuously in the Austria-Hungarian follow on countries Yugoslavia, Croatia, and Slovenia, as well as in the modern day's Austrian merchant navy.

According to that systematic the rank designations to subaltern – or junior officers were derived as follows: Linienschiffsleutnant (French: Lieutenant de vaisseau; Flemish: Luitenant-ter-zee) is a rank used by the Belgian Naval Component.