MWSA
| Acronym | Definition |
|---|---|
| MWSA | Motorway Service Area (UK) |
| MWSA | Michigan Water Ski Association |
| MWSA | Manly Warringah Softball Association (Australia) |
| MWSA | Ministry of Work and Social Affairs (Czech Republic) |
| MWSA | Massachusetts Woman Suffrage Association (now Massachusetts League of Women Voters) |
| MWSA | Ministry of Women and Social Action (Mozambique) |
| MWSA | Minnesota Woman Suffrage Association (1881-1913) |