| HSCA | Hawaii State Chiropractic Association | 夏威夷州脊医协会 |
| HSCA | High School Culinary Arts | 高中烹饪艺术 |
| HSCA | Hazardous Substances Control Act | 有害物质控制法 |
| HSCA | House Select Committee on Assassinations | 众议院暗杀问题特别委员会 |
| HSCA | Harvard-Smithsonian Center for Astrophysics | 天体物理中心 |
| HSCA | Human Service Charities of America | 美国公益慈善机构 |
| HSCA | sensitized human cell agglutination test | 致敏人细胞凝集试验 |