| RQI | Rayleigh Quotient Iteration | 瑞利商迭代 |
| RQI | Revenue & Quality Improvement | 收入和质量改进 |
| RQI | Cohen & Steers Quality Income Realty Fund, Inc. | 科恩和不动产基金,让质量收入 |
| RQI | Ride Quality Index | 乘坐质量指数 |
| RQI | Rice Quantum Institute | 水稻量子研究所 |
| RQI | ResortQuest International | ResortQuest国际 |
| RQI | Recreational Quality Index | 娱乐质量指数 |
| RQI | Research Quality Initiative | 研究质量倡议 |