{| |} Lebed XI was the designation applied to a number of reconnaissance aircraft supplied to the Imperial Russian Air Force by the Lebed factory of St Petersburg during World War I. Rather than representing any one particular type of aircraft, or even aircraft of Lebed's own design, the designation covered a variety of different German Albatros aircraft that had been brought down behind Russian lines and captured. Lebed repaired or rebuilt these machines and returned them to service on the Russian side.