| WMCA | Western Marine Community Association | 西部海洋社区协会 |
| WMCA | Wisconsin Medical Credit Association | 威斯康星州医疗信用协会 |
| WMCA | Washington Metropolitan Courier Association | 华盛顿大都会快递协会 |
| WMCA | Washington Municipal Clerks Association | 华盛顿市文员协会 |
| WMCA | William & Mary Chancellor Academy | 威廉与玛丽学院议长 |
| WMCA | Western Maine Community Action | 缅因州西部社区行动 |