Quadrant

Quadrant may refer to:

Companies

 * Quadrant Cycle Company, 1899 manufacturers in Britain of the Quadrant motorcar
 * Quadrant (motorcycles), one of the earliest British motorcycle manufacturers, established in Birmingham in 1901
 * Quadrant Private Equity, an Australian investment firm
 * Quadrant Records, an independent record label
 * Quadrant Televentures Ltd., a subsidiary of Videocon Telecom, India

Geography

 * A quadrant or section in a city street nomenclature system, see Address (geography)
 * Quadrants of Washington, D.C.

Mathematics

 * Quadrant (circle), a circular sector equal to one-quarter of a circle
 * Quadrant (plane geometry), a sector of a two-dimensional Cartesian coordinate system
 * Quadrant (solid geometry)

Military

 * HMAS Quadrant (G11), a Second World War British/Australian warship
 * First Quebec Conference, 1943 (codenamed "QUADRANT")
 * The quadrant sight, an M203 grenade launcher assembly attachment that gets inserted on the left side of the carrying handle on M16 rifles.

Science and technology

 * Galactic quadrant, one out of four circular sectors in the division of the Milky Way galaxy
 * Quadrant (abdomen), a division of the abdominal cavity
 * Quadrant (architecture) a curve in a wall or vaulted ceiling of a building
 * Quadrant (instrument), an angle or time-measuring instrument
 * Quadrant (semigraphics), a 2×2 semigraphical pixel array in computing

Places

 * Quadrant Bus Station, Swansea Wales
 * Quadrant:MK, Network Rail's headquarters campus in Milton Keynes
 * Quadrant Park, a nightclub in Liverpool, Merseyside
 * Quadrant Shopping Centre, Swansea, Wales
 * The Quadrant, a housing estate in Kingston upon Hull, UK

Other

 * Quadrant (album), a 1977 album by Joe Pass and Milt Jackson
 * Quadrant (college basketball), a performance measure derived from the Rating Percentage Index
 * Quadrant (magazine), an Australian literary and cultural journal
 * Triumph Quadrant, a four-cylinder motorcycle
 * A division of dentition - see Glossary of dentistry
 * Team Quadrant, a video content, apparel and esports team created by Formula One driver Lando Norris