| RTAP | Retrieving the American Past | 找回美国往事 |
| RTAP | Rural Transit Assistance Program | 农村交通援助计划 |
| RTAP | Runway Template Action Plan (FAA tracking new runway construction and commissioning project) | 跑道模板行动计划（FAA跟踪新跑道建设和调试项目） |
| RTAP | Real-Time Analytical Platform | 实时分析平台 |
| RTAP | Rapid Technology Application Program (Department of Homeland Security) | 快速技术应用计划（国土安全部） |
| RTAP | Reactor Training and Procedures | 反应堆培训和程序 |
| RTAP | Remote Test Access Placer | 远程测试访问放置器 |
| RTAP | Radiation Therapy Advisory Panel (Australia) | 放射治疗咨询小组（澳大利亚） |
| RTAP | Rural Technical Assistance Program | 农村技术援助计划 |
| RTAP | Read The Article Please | 请阅读文章 |
| RTAP | Real-Time Application Platform | 实时应用平台 |