SAMSA
| 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) |