DQ may stand for:
In arts and entertainment Dragon Quest, a series of console role-playing games created by Enix Dragon Quest (video game), The first game in the series released in 1986 DragonQuest, a 1980 role-playing game created by SPI
Businesses Dairy Queen, a fast food chain Coastal Air Transport (IATA code DQ) DQ Entertainment, an Indian animation studio
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 (athletics) Disqualification (boxing) Disqualification (professional wrestling) Disqualification (tennis) Disqualification (Formula 1)
Other uses Donegal Quay, quay by the River Lagan, Belfast DQ code, used in telephone directory assistance in the UK Jarvis Island (FIPS PUB 10-4 territory code DQ) Fiji (aircraft registration prefix DQ)