| QET | Quality Engineering Technician | 质量工程技术员 |
| QET | Phone home | 打电话回家 |
| QET | Quality Environmental Technologies | 质量环境技术 |
| QET | Quality Engineering Technology | 质量工程技术 |
| QET | Qualifying English Test | 合格英语考试 |
| QET | Quality Evaluation Tracking (system) | 质量评估跟踪（系统） |
| QET | Quantum-Effect Transistor | 量子效应晶体管 |