| RSSA | Really Simple Syndication-Audio | 真正简单的联合音频 |
| RSSA | Rockwell Ship Systems Australia | 澳大利亚罗克韦尔船舶系统公司 |
| RSSA | Regional Software Support Activity | 区域软件支持活动 |
| RSSA | Radio Science Stability Analyzer | 无线电科学稳定性分析仪 |
| RSSA | Random Single Switch Algorithm | 随机单开关算法 |
| RSSA | Regional Supply Support Activity | 区域供应支持活动 |
| RSSA | Royal Society of South Africa | 南非皇家学会 |
| RSSA | Radiological Society of South Africa | 南非放射学会 |
| RSSA | Royal Scottish Society of Arts | 苏格兰皇家艺术学会 |