| Acronym | Definition |
|---|
| SMSD➣Shawnee Mission School District (Kansas) |
| SMSD➣Stafford Municipal School District (Stafford, TX) |
| SMSD➣Social Media Stress Disorder |
| SMSD➣State-Managed Small Disaster (emergency management) |
| SMSD➣Submarine Detector Ship's Magnet (US Navy) |
| SMSD➣Siemens Medical Solutions Diagnostics |
| SMSD➣Sekolah Menengah Sains Dungun (Malay: Secondary School Science Dungun; Dungun, Terengganu, Malaysia) |
| SMSD➣Small Molecule Subgraph Detector (software) |
| SMSD➣South Milwaukee School District (South Milwaukee, WI) |