| TQI | Total Quality Improvement | 全面质量改进 |
| TQI | Total Quality Index | 总质量指数 |
| TQI | Telecom Quality Index | 电信质量指数 |
| TQI | Total Quality Involvement | 全面质量参与 |
| TQI | Teaching Quality Information (UK) | 教学质量信息（英国） |
| TQI | Timeless Quality Imaging LLC (Wisconsin Rapids, Wisconsin) | Timeless Quality Imaging LLC（威斯康星州威斯康辛州急流城） |
| TQI | Teacher Qualification Index | 教师资格指数 |
| TQI | Training and Quality Improvement Committee | 培训和质量改进委员会 |
| TQI | Texas Quality Initiative | 德克萨斯州质量倡议 |
| TQI | Total Quality Idiot | 总质量白痴 |
| TQI | Teaching Quality Initiative | 教学质量倡议 |
| TQI | Total Quality Inspection | 全面质量检查 |
| TQI | Teaching Quality Information | 教学质量信息 |