| Rank | Abbreviation | Meaning |
|---|
| ***** | SSMT | Satan Stole My Teddybear
| |
| **** | SSMT | Société Suisse de Médecine du Travail
| |
| ** | SSMT | Saturday Sunday Monday Tuesday
| |
| ** | SSMT | Secretaria de Segurança e Medicina do Trabalho
| |
| ** | SSMT | Student Services Management Team
| |
| ** | SSMT | Site Security Maintenance Team
| |
| * | SSMT | Ship's Service Man, Tailor
| |
| * | SSMT | Somerset School of Massage Therapy
| |
| * | SSMT | Subordinate Simultaneous Micro-Threading
| |
| * | SSMT | Showplace Savannah Movie Times
| |
| * | SSMT | Scarsdale Summer Music Theater
| |
| * | SSMT | Sarasota School of Massage Therapy
| |
| * | SSMT | Special Sensor Microwave Temperature Sounder
| |
| * | SSMT | Super Slick Monster Truck
| |
| * | SSMT | Specialist Substance Misuse Team
| |
| * | SSMT | Space Station Mobility Trainer
| |
| * | SSMT | Sir Sayajirao Memorial Trust
| |
| * | SSMT | Stress Survival Matrix Test
| |
| * | SSMT | Soldering & Surface Mount Technology
| |
| * | SSMT | Scuola superiore medico tecnica
| |
| * | SSMT | Succinylcholine-stimulated muscle tensions
| |
| * | SSMT | Staveley Services Materials Testing
| |
| * | SSMT | Straight Stretch Mini Turbo
| |
| * | SSMT | Society for the Study of Mormon Theology
| |
| * | SSMT | Shenandoah Summer Music Theater
| |