| HCSSA | Harvard Chinese Students and Scholars Association | 哈佛中国学生学者协会 |
| HCSSA | Hennepin County Sheriff's Supervisors Association | Hennepin县警长主管协会 |
| HCSSA | Harvard Chinese Students And Scholar Association | 哈佛中国学生学者协会 |
| HCSSA | Health Care Systems Support Activity | 医疗保健系统支持活动 |
| HCSSA | Home and Community Support Services Agency (US Army) | 家庭和社区支持服务局（美国陆军） |