| Acronym | Definition |
|---|
| RSAS➣RSA Security, Inc. (stock abbreviation, AMEX) |
| RSAS➣Royal Swedish Academy of Sciences |
| RSAS➣RAND Strategy Assessment System |
| RSAS➣Railway Safety Accreditation Scheme (British Transport Police; UK) |
| RSAS➣Reactor Safety Assessment System |
| RSAS➣Rapid Solution Administration Set |