QT or Qt may refer to: Arts and media QT (musician) (born 1988), pop singer QT: QueerTelevision, an LGBT newsmagazine which aired on Canada's CityTV in the 1990s Quentin Tarantino (born 1963), American filmmaker Question Time (TV programme), a topical debate BBC television programme in the UK Organizations QuikTrip, a US convenience store chain QT Inc., manufacturer of the Q-Ray ionized bracelet QT Hotels & Resorts The Qt Company Science and technology Medicine QT interval, on an electrocardiogram Long QT syndrome, a rare heart condition Short QT syndrome, a very rare disease of the heart Other uses in science and technology Qt (software), a cross-platform application framework QuickTime, a multimedia technology from Apple Inc. Quiet Trader, cargo versions of the BAe 146 jet Quart (qt), a unit of volume equal to a quarter of a gallon Other uses Quality time, time spent with loved ones which is in some way special QT (New York City Subway service), a former New York City Subway service, whose route is now partially served by the Q train Quantitative tightening, a contractionary monetary policy applied by central banks See also Cutie (disambiguation)