Franz Maria Liedig (2 February 1900 – 30 March 1967) was a Kriegsmarine officer and member of the military resistance against Adolf Hitler.

Liedig volunteered the German Imperial Navy in October 1916, was educated at the Naval Academy Mürwik and served as an Artillery Officer on a Torpedo boat.

Liedig was a member of the Freikorps Marinebrigade Ehrhardt, deployed in Berlin and Upper Silesia in 1919/20, and a participant of the Kapp Putsch in March 1920.

On October 8, 1939, Liedig drove Hans Oster to the Dutch Military attaché in Berlin, Colonel Bert Sas.

He was imprisoned at several concentration camps like Flossenbürg, Buchenwald, Dachau and finally transferred to Niederdorf amongst about 140 prominent inmates in late April 1945, where the SS left them behind.