| RQA | Recurrence Quantification Analysis | 重复量化分析 |
| RQA | Rational QualityArchitect | Rational Quality架构师 |
| RQA | Recursive Query Answer | 递归查询答案 |
| RQA | Remote Query Accelerator | 远程查询加速器 |
| RQA | Register of Qualified Aromatherapists | 合格芳香治疗师名册 |
| RQA | Repetitive Query Attempt (Unreal game engine security exploit) | 重复查询尝试（虚幻游戏引擎安全漏洞） |
| RQA | Regional/Field Detachment Quality Assurance Division | 区域/场支队的质量保证区 |