QT or Qt may refer to:
Businesses Qt Group, a Finnish software developer QT Hotels & Resorts, an Australasian hospitality provider QT Inc., an American bracelet manufacturer QuikTrip, an American convenience store chain
People QT (musician) (born 1988), American pop singer QTCinderella (born 1994), American Twitch streamer and YouTuber Q-Tee, British rapper (active in the 1990s) Quentin Tarantino (born 1963), American filmmaker
Science and technology Computer software Qt (software), a cross-platform application framework Qt Project, effort to coordinate the development of the Qt framework QuickTime, a multimedia technology from Apple Inc.
Heart medicine QT interval, on an electrocardiogram
Units of measure Quart (qt), an imperial unit of volume
Television shows QT: QueerTelevision, a 1990s Canadian LGBT newsmagazine Question Time (TV programme), a British panel debate (first aired 1979)
Transport QT (New York City Subway service), a defunct rapid-transit service Quiet Trader, cargo versions of the BAe 146 airliner
Other uses Quality time, periods proactively spent with one's loved ones Quantitative tightening, a contractionary monetary policy from a central bank
See also Cutie (disambiguation) QTS (disambiguation)