DQ may stand for:
DQ Herculis (or Nova Herculis 1934) was a slow, bright nova occurring in Hercules in December 1934. The nova was first observed on 13 Dec, 1934, reaching a peak brightness with an apparent magnitude 1.5 on 22 Dec, 1934. The nova remained visible to the naked eye for several months.
DQS Holding GmbH based in Frankfurt am Main is the holding company of the worldwide DQS Group. The group provides assessments and certifications of management systems and processes of any type.
Duquesne Light Holdings, Inc. (“DLH”) is an energy services holding company formed in 1989 to serve as the holding company for Duquesne Light Company and to engage in certain unregulated energy and related businesses.
Dragon Quest is a series of internationally best-selling console role-playing video game (RPG) titles created by Yuji Horii and his studio, Armor Project.
DQE, or Dairy Queen Empire, is a band formed by singer/songwriter Grace Braun, New York photographer Chris Verene and former Fat Day drummer Zak Sitter in 1986 in Atlanta.
Phase-shift keying (PSK) is a digital modulation scheme that conveys data by changing (modulating) the phase of a reference signal (the carrier wave).
Dairy Queen, often abbreviated DQ, is a chain of soft serve ice cream and fast food restaurants owned by International Dairy Queen, Inc, a subsidiary of Berkshire Hathaway.
DQ (born Peter Andersen on 16 February 1973) is a Danish singer and drag queen who won the Danish Melodi Grand Prix 2007 and therefore represented Denmark in the Eurovision Song Contest 2007 with the song "Drama Queen".
This is a list of digraphs used in various Latin alphabets. Capitalization involves only the first letter (ch becomes Ch) unless otherwise stated (ij becomes IJ).