DQ may stand for:
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.
DQ Herculis (or Nova Herculis 1934) was a slow, bright nova occurring in Hercules in December 1934. The nova was discovered on 13 December 1934 by J. P. M.
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.
Dragon Quest, published as Dragon Warrior in North America until 2005, is a series of console role-playing video games created by Yuji Horii and his studio Armor Project.
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".
Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency 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 Inc.
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).