| Acronym | Definition |
|---|
| QT | Quart |
| QT | QuickTime (media file extension) |
| QT | Cutie |
| QT | QT Interval (measure between Q wave and T wave in the heart's electrical cycle) |
| QT | Quiet |
| QT | Quality Time |
| QT | Quentin Tarantino (director) |
| QT | Qualifying Transaction |
| QT | Quality Team |
| QT | Quick Takes |
| QT | Quantum Teleportation |
| QT | Quiet Time |
| QT | Queenstown (Otago, New Zealand) |
| QT | Quiet Talk (wireless technology) |
| QT | Quick Trip |
| QT | Qui Tam |
| QT | Quad Tree |
| QT | Quenched and Tempered (type of steel) |
| QT | Qualification Test |
| QT | Queuing Theory |
| QT | Quantity Time |
| QT | QuadraTrac (Jeep 4x4 system) |
| QT | Quiet Thing |
| QT | Questioned Trade |
| QT | Quick Translations |
| QT | Quantum Topology |
| QT | Quality Transformations (Canada; est. 2006) |
| QT | Quick Tackle (football) |
| QT | Quasi-Terrestrial (Mad Magazine) |
| QT | Quiet Torpedo |