| RSAS | RSA Security, Inc. | RSA Security，Inc.公司。 |
| RSAS | Residence Student Affairs Specialist | 住校学生事务专员 |
| RSAS | Reactor Safety Assessment System | 反应堆安全评估系统 |
| RSAS | Royal Swedish Academy of Sciences | 瑞典皇家科学院 |
| RSAS | RSA Security, Inc. (stock abbreviation, AMEX) | RSA Security，Inc.（股票缩写，AMEX） |
| RSAS | RAND Strategy Assessment System | 兰德公司战略评估系统 |