| Acronym | Definition |
|---|
| HSMC➣High-Speed Mezzanine Card |
| HSMC➣Health Services Management Centre |
| HSMC➣Historic St. Mary's City (Maryland) |
| HSMC➣Hindustan Semiconductor Manufacturing Corporation |
| HSMC➣High School Math Contest (various schools) |
| HSMC➣Humane Society of Marion County |
| HSMC➣Human Smooth Muscle Cell |
| HSMC➣Headquarters and Support Medical Company |
| HSMC➣Health and Safety Management Consultants Ltd (UK) |
| HSMC➣Hard Systems Model of Change |