The 159th Liaison Squadron is an inactive United States Air Force unit. It was last assigned to V Fighter Command, and was inactivated on 31 May 1946 at Itami Airfield, Japan. The squadron was a World War II Air Commando unit, primarily seeing combat during the Philippines Campaign (1944–45) with the 3d Air Commando Group. Flying unarmed Stinson L-5 Grasshopper and UC-64A Norseman light aircraft, the squadron flew courier and aerial reconnaissance missions and dropped munitions and supplies to American and Philippine forces fighting in the Battle of Luzon.