| Acronym | Definition |
|---|
| SMSA➣Sydney Mechanics' School of Arts (Australia) |
| SMSA➣Standard Metropolitan Statistical Area |
| SMSA➣School Meals Supervisory Assistant (UK) |
| SMSA➣National Association of State Motorcycle Safety Administrators |
| SMSA➣Southern Maryland Sailing Association |
| SMSA➣Seabee Memorial Scholarship Association |
| SMSA➣Smoky Mountain Soaring Association (aviation) |
| SMSA➣Sheffield Malaysian Students Association (UK) |
| SMSA➣Suomen Murteiden Sana-Arkisto (Finnish) |
| SMSA➣Singapore Malaysian Student Association |
| SMSA➣Stittsville Minor Softball Association (Canada) |
| SMSA➣Seaman Apprentice, Signalman Striker (Naval Rating) |
| SMSA➣Surrey Masonic Sports Association (UK) |
| SMSA➣Sprint Metropolitan Service Area |