| Acronym | Definition |
|---|
| SAMSA➣Substance Abuse and Mental Health Services Administration |
| SAMSA➣South African Maritime Safety Authority |
| SAMSA➣System and Market Services of America (web design and networking services; Saginaw, MI) |
| SAMSA➣Southern Africa Mathematical Sciences Association (est. 1981) |
| SAMSA➣South Asian Medical Student Association (University of Illinois at Chicago; College of Medicine) |
| SAMSA➣Silica and Moulding Sand Association (UK) |