| HFCA | Heritage Forest Community Association | 传统森林社区协会 |
| HFCA | Hawaii Fire Chiefs Association | 夏威夷消防队长协会 |
| HFCA | Hainault Forest Community Association | 海诺森林社区协会 |
| HFCA | High Frequency Chin Array (mine detection SONAR; US Navy) | 高频下巴阵列（水雷探测声纳；美国海军） |
| HFCA | Helicopter Flight Coordination Area | 直升机飞行协调区 |
| HFCA | High Fat Cholic Acid | 高脂肪胆酸 |
| HFCA | Hydroxy Fluorene Carboxylic Acid | 羟基芴羧酸 |
| HFCA | Hexanary Feedback Contention Access | 六进制反馈竞争访问 |