| HACT | Housing Associations' Charitable Trust (London, UK) | 房屋协会的慈善基金(英国伦敦) |
| HACT | Housing Associations Charitable Trust | 住房协会慈善信托 |
| HACT | Housing Association Charitable Trust | 住房协会慈善信托 |
| HACT | Human-Automation Collaboration Taxonomy (MIT research project) | 人类自动化协作分类法（麻省理工学院研究项目） |
| HACT | Helicopter Active Control Technology | 直升机灵活控制技术 |