QT or Qt may refer to:
Qt (/kjuːt/ "cute") is a cross-platform application framework that is used for developing application software that can be run on various software and hardware platforms with little or no change in the underlying codebase, while still being a native application with native capabilities and speed.
In cardiology, the QT interval is a measure of the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle.
Hayden Dunham (born 1988) is an American performance artist known for her musical project QT, an initialism for Quinn Thomas.
QTQ is an Australian television station, licensed to, and serving Brisbane, Queensland. It is owned by the Nine Entertainment Co., and is part of the Nine Network.
The QTC (Queensland Turf Club) Cup is a Brisbane Racing Club Group 2 Australian Thoroughbred horse race held under open handicap conditions, over a distance of 1300 metres at Eagle Farm Racecourse in Brisbane, Australia during the Queensland Winter Racing Carnival.
The Qt Project is a project to co-ordinate the development of the Qt software framework. The project was founded by Nokia, and has been now led by Digia’s subsidiary The Qt Company since it acquired Qt software technologies, trademarks, and personnel from Nokia.