| Acronym | Definition |
|---|
| QTT➣Quercotriterpenoside (sweet triterpenic compound) |
| QTT➣Quixote Transportation Technologies, Inc. (Durham, NC) |
| QTT➣Quality Transport Training (UK independent training provider) |
| QTT➣quality time together |
| QTT➣Qualitat Tecnica Textil (Spanish textiles company; Barcelona, Spain) |
| QTT➣Quantum Transport Theory |
| QTT➣Quiet Torpedo Technology |
| QTT➣ID Signal Superimposed on another Transmission (radiotelegraphy) |