William Hart Pitsenbarger (July 8, 1944 – April 11, 1966) was a United States Air Force Pararescueman who gave his life aiding and defending a unit of soldiers pinned down by an enemy assault in Vietnam. He was initially posthumously awarded the Air Force Cross, which was later upgraded to the Medal of Honor. He was the first enlisted recipient of the Air Force Cross medal, receiving the award in 1966.