| SMA(S) | Shared Medical Appointment(S) 
| Others |
| SMAS | Safety Management Advisory Services
| Others |
| SMAS | Sailor Moon Another Story
| Others |
| SMAS | Scholarship for Minority Accounting Students
| Others |
| SMAS | School of Mathematics and Applied Statistics
| Others |
| SMAS | Scottish Manufacturing Advisory Service
| Others |
| SMAS | Signature Managers against Spam
| Others |
| SMAS | Skilled Migration Assessment Services
| Others |
| SMAS | Smoky Mountain Astronomical Society
| Others |
| SMAS | Society for Medieval Arts and Sciences
| Others |
| SMAS | Southern Maryland Astronomical Society
| Others |
| SMAS | Southwest Montana Astronomical Society
| Others |
| SMAS | Space Management and Academic Scheduling
| Others |
| SMAS | Sports Medicine Association Singapore
| Others |
| SMAS | Statements of Standards for Management Advisory Services
| Others |
| SMAS | Stephen Memorial Animal Shelter
| Others |
| SMAS | Substance Misuse Advisory Service (extinct)
| Others |
| SMAS | Super Mario All Stars
| Others |
| SMAS | Super Mario All-Stars
| Others |
| SMAS | Superficial Muscolo Aponeurotic System
| Others |
| SMAS | Superficial Muscular Aponeurotic System
| Others |
| SMAS | Superficial Musculo Aponeurotic System
| Others |
| SMAS | Superficial Musculo Aponuerotic System
| Others |
| SMAS | Superficial Musculo-Aponeurotic System
| Others |
| SMAS | Superior Mesenteric Artery Syndrome
| Others |
| SMAS | Supplementary Main Store
| Others |
| SMAS | Switched Maintenance Access System
| Others |