| WHCA | White House Communication Agency | 白宫通信局 |
| WHCA | White House Correspondents Association | 白宫记者协会 |
| WHCA | Wisconsin Health Care Association | 威斯康星州卫生保健协会 |
| WHCA | Washington Health Care Association | 华盛顿卫生保健协会 |
| WHCA | Woodland Heights Civic Association | 伍德兰高地公民协会 |
| WHCA | White House Correspondents' Association | 在白宫记者协会 |
| WHCA | Washington Hancock Community Agency (Maine) | 华盛顿汉考克社区机构（缅因州） |
| WHCA | Washington Hancock Community Agency | 华盛顿汉考克社区机构 |
| WHCA | Walton H. Chancey & Associates, Architects | 沃顿h Chancey员工、建筑师及 |
| WHCA | White House Conference on Aging | 白宫老龄问题会议 |
| WHCA | White House Communications Agency | 白宫通信局 |
| WHCA | War Hazards Compensation Act | 战争危险补偿法 |