QD may refer to:

Businesses and organizations

QD stores QD Stores is an independently owned discount retailer operating in the United Kingdom, primarily in East Anglia and the East Midlands. Products stocked include a mixture of items for the home and garden, basic groceries and a range of clothin ...

, a chain of discount retail outlets in England *

Dobrolet (low-cost airline) Dobrolet LLC (russian: ООО «Добролёт» , translit = OOO Dobrolyot) was a Russian low-cost airline - a subsidiary of Aeroflot - based at Sheremetyevo International Airport. It operated scheduled flights to domestic destinations. Hi ...

(IATA airline designator QD), a Russian low-cost carrier * JC International Airlines (IATA airline designator QD), a Cambodian airline

Science and technology

Quantum dot Quantum dots (QDs) are semiconductor particles a few nanometres in size, having light, optical and electronics, electronic properties that differ from those of larger particles as a result of quantum mechanics. They are a central topic in nanote ...

s, 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 {{disambiguation