| Acronym | Definition |
|---|
| SMAS | Sumitomo Mitsui Auto Service (Japan) |
| SMAS | Superficial Musculo-Aponeurotic System |
| SMAS | School of Mathematics & Applied Statistics (University of Wollongong; Australia) |
| SMAS | Superior Mesenteric Artery Syndrome |
| SMAS | Super Mario All-Stars (video game) |
| SMAS | Southern Maryland Astronomical Society |
| SMAS | Smoky Mountain Astronomical Society |
| SMAS | Scottish Mutual Assurance Society (UK) |
| SMAS | Switched Maintenance Access System |
| SMAS | Southern Maryland Audubon Society |
| SMAS | Sports Medicine Association of Serbia |
| SMAS | Streaming Media Application Server |
| SMAS | Standard Material Accounting Systems |
| SMAS | Society of Medieval Arts and Sciences (Worcester Polytechnic Institute) |
| SMAS | Sudbury Marine Aquarium Society (Canada) |
| SMAS | Service Metallic Access System |