Quadrant

• 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 • 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==

• , 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, cultural and centre-right political 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