MSWS
| Acronym | Definition |
|---|---|
| MSWS | Medical Social Work Services (geriatric services; Florida) |
| MSWS | Microsoft Windows Sockets |
| MSWS | Mass Social Welfare Scheme (Ghana) |
| MSWS | Multi-Sensor Warning System |
| MSWS | Mountain States Weather Services (est. 1977; Fort Collins, CO) |
| MSWS | Maple Summer Workshop and Symposium (Rensselaer Polytechnic Institute; Troy, NY) |
| MSWS | Mid-South Winter Series (racing) |