QTT
| 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) |