QF may stand for:
Businesses and organisations Qantas, an Australian airline (IATA:QF) Qatar Foundation, a non-profit Quiverfull, a Christian movement
Military Quds Force, an Iranian expeditionary unit Quick-firing gun, an artillery piece A gun breech that uses metallic cartridges; see British ordnance terms#QF Q-Fire, a decoy fire site used in World War II
Other uses Quality factor, in physics and engineering, a measure of the "quality" of a resonant system