| Acronym | Definition |
|---|
| MSST | Mass Storage Systems and Technologies |
| MSST | Maritime Safety and Security Team (USCG) |
| MSST | Military Stabilisation Support Team (UK) |
| MSST | Master Scheduling Support Tool (US Marine Corps) |
| MSST | Multi System Search Tool (software) |
| MSST | Maximum Safe Storage Temperature |
| MSST | Mass Storage Systems and Technology (IEEE Conference) |
| MSST | Maximum-Shear-Stress Theory (machine elements) |
| MSST | Milsatcom Site Support Team |
| MSST | Material Source Solution Team |
| MSST | Military Survival Skills Training |
| MSST | Montana Self-Sufficiency Trust (special needs fund) |
| MSST | Maintenance Support Strategy Team |
| MSST | Mountain States Sales Training (Utah) |