QD
# QD

QD may refer to:

## Businesses and organizations

* QD stores, a chain of discount retail outlets in England
* Dobrolet (low-cost airline) (IATA airline designator QD), a Russian low-cost carrier
* JC International Airlines (IATA airline designator QD), a Cambodian airline

## Science and technology

* Quantum dots, in nanotechnology
* N-Gage QD, a handheld game console and smartphone
* Dermatologicals, a veterinary ATC code D
* Queue depth, a measure of concurrency in SSD benchmarking; see IOPS
* Quick Disk, a type of miniature floppy disk used primarily in the 1980s

## Other uses

* Quaque die, "every day" in Latin; mainly pharmaceutical usage
* The EU Qualification Directive (Directive 2011/95/EU of the European Parliament and of the Council of 13 December 2011 on standards for the qualification of third-country nationals or stateless persons as beneficiaries of international protection, for a uniform status for refugees or for persons eligible for subsidiary protection, and for the content of the protection granted)
