DQ

DQ may stand for:

In arts and entertainment

 * Dragon Quest, a series of console role-playing games created by Enix (now Square Enix)
 * Dragon Quest (Video Game), The first game in the series originally released for the Famicom in 1986
 * DragonQuest, a 1980 role-playing game created by SPI

Businesses

 * Dairy Queen, a fast food chain
 * Coastal Air Transport (IATA code DQ)

People

 * DQ (artist), Danish singer, participant in Eurovision Song Contest 2007
 * Dan Quayle, American politician
 * Dulquer Salmaan, Indian actor and singer
 * Dan Quinn (American football), football coach

In science and technology

 * HLA DQ, a human leukocyte antigen type protein
 * Data quality, various measures in information science
 * Design qualification, part of verification and validation
 * Digital Intelligence Quotient, a form of intelligence that combines knowledge in information technology and the socio-emotional ability to interact effectively through this medium
 * Double-ended queue, a data type in computer science

In sport

 * Disqualification (boxing)
 * Disqualification (professional wrestling)
 * Disqualification (tennis)

Other uses

 * DQ code, used in telephone directory assistance in the UK
 * Jarvis Island (FIPS PUB 10-4 territory code DQ)