| Abbreviation | Definition |
|---|---|
| SAG-AFTRA | Screen Actors Guild-American Federation of Television and Radio Artists |
| SAIA | South African Insurance Association |
| SAIF | South African Institute of Forestry |
| SAIPA | South African Institute of Professional Accountants |
| SAIS | The Southern Association For Independent Schools |
| SAJA | South Asian Journalists Association |
| SAL | Society of Antiquaries of London |
| SALN | Self-Advocate Leadership Network |
| SALSA | Spanish And Latin Students Association |
| SALSA | Student Association La Sierra Academy |
| SALSA | The Salt And Light Student Association |
| SAM | Society for Advancement of Management |
| SAM | Society for Airway Management |
| SAM | Society of American Magicians |
| SAMA | San Antonio Manufacturers Association |
| SAMA | Saskatchewan Assessment Management Association |
| SAMA | South African Medical Association |
| SAMA | Sudanese American Medical Association |
| SAMDA | South African Mining Development Association |
| SAMDA | South Asian Medical-Dental Association |