QT or Qt may refer to:
Businesses
- The Qt Company, 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
- QuickTime, a multimedia technology from Apple Inc.
Heart medicine
- QT interval, on an electrocardiogram
- Long QT syndrome, a rare condition
- Short QT syndrome, a very rare disease
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)