| WMSA | Wood Machinery Suppliers' Association | 木机械供应商协会 |
| WMSA | Women's Medical Student Association | 女子医科学生联合会 |
| WMSA | Women in Military Service for America | 为美国服兵役的妇女 |
| WMSA | Weighted Multi-Slot Averaging | 加权多时隙平均 |
| WMSA | West Missouri Shooters Alliance | 西密苏里州枪手联盟 |
| WMSA | Western Missouri Shooters Alliance | 西密苏里州枪手联盟 |