| SIRR | Software Improvement Recommendation Report | 软件改进建议报告 |
| SIRR | Software Integration Readiness Review | 软件集成就绪评审 |
| SIRR | Station Island Railroad | 车站岛铁路 |
| SIRR | Software Installation Results Record | 软件安装结果记录 |
| SIRR | Stepped-Impedance Ring Resonator | 阶跃阻抗环形谐振器 |
| SIRR | Southern Industrial Railroad | 南方工业铁路 |