QF may stand for:
Businesses and organisations
*
Qantas
Qantas ( ), formally Qantas Airways Limited, is the flag carrier of Australia, and the largest airline by fleet size, international flights, and international destinations in Australia and List of largest airlines in Oceania, Oceania. A foundi ...
, an Australian airline (IATA:
QF)
*
Qatar Foundation
The Qatar Foundation for Education, Science and Community Development () is a state-led non-profit organization in Qatar, founded in 1995 by then-List of emirs of Qatar, emir Hamad bin Khalifa Al Thani and his second wife Moza bint Nasser Al-Miss ...
, a non-profit
*
Quiverfull
Quiverfull is a Christian theological position that sees large families as a blessing from God. It encourages procreation, abstaining from all forms of birth control, natural family planning, and sterilization reversal. The movement derives its ...
, a Christian movement
Military
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Quds Force
The Quds Force () is one of five branches of Iran's Islamic Revolutionary Guard Corps (IRGC). It specializes in unconventional warfare and military intelligence operations. U.S. Army's Iraq War General Stanley McChrystal describes the Quds Fo ...
, an Iranian expeditionary unit
*
Quick-firing gun
A quick-firing or rapid-firing gun is an artillery piece, typically a gun or howitzer, that has several characteristics which taken together mean the weapon can fire at a fast rate. Quick-firing was introduced worldwide in the 1880s and 1890s and ...
, 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
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Quality factor
In physics and engineering, the quality factor or factor is a dimensionless parameter that describes how underdamped an oscillator or resonator is. It is defined as the ratio of the initial energy stored in the resonator to the energy lost in ...
, in physics and engineering, a measure of the "quality" of a resonant system
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