| Acronym | Definition |
|---|
| QTC | Queensland Treasury Corporation (Brisbane, QLD, Australia) |
| QTC | Queensland Theatre Company |
| QTC | Quantum Tunnelling Composite |
| QTC | Q-T Corrected (corrected Q-T interval) |
| QTC | Queensland Turf Club (Australia) |
| QTC | Quality Training Center (various organizations) |
| QTC | Quester Tangent Corporation (North Saanich, British Columbia, Canada) |
| QTC | Quality Tourism for the Caribbean |
| QTC | Queensland Theological College (Brisbane, QLD, Australia) |
| QTC | Que Te Cagas |
| QTC | Quality Test Coupon (engineering) |
| QTC | Quad Terrain Challenge (motocross event) |
| QTC | Quiet Time Coherent (microphone) |
| QTC | Quantitative Technology Corporation |
| QTC | Quarterly Training Calendar |
| QTC | Química Teórica Computacional (Spanish: theoretical computational chemistry) |
| QTC | Queen's Theological College (Canada) |
| QTC | Quick Test Case (software development) |
| QTC | Quality Technology Centre |
| QTC | Quick Time Conference |
| QTC | Qingdao Technical College (China) |
| QTC | I Have A Message to Send (radiotelegraphy) |
| QTC | Quality Training Consultants Ltd (UK) |
| QTC | Qamar Tanning Company (Pakistan) |
| QTC | Qualified Technologies Corporation (Upland, CA) |
| QTC | Quality Tablecloth (custom fabrics; New York) |
| QTC | Quilters Trading Cards |