| Acronym | Definition |
|---|
| HSSC➣Higher Secondary School Certificate |
| HSSC➣Health Sciences South Carolina (est. 2004) |
| HSSC➣Harris-Stowe State College (St.Louis, MO) |
| HSSC➣Health and Social Services Committee (various organizations) |
| HSSC➣Health and Social Services Center (New Mexico) |
| HSSC➣High School Science Club (Houston, TX) |
| HSSC➣High Sierra Sport Company (Gurnee, IL) |
| HSSC➣High Speed Subcarrier Committee (National Radio Systems Committee) |
| HSSC➣Harmonised System of Survey and Certification |
| HSSC➣High Street Supply Chain |
| HSSC➣Hennepin South Services Collaborative (Minnesota) |
| HSSC➣Heating, Sweating, Spontaneous Combustion (insurance) |
| HSSC➣Hawaii State Student Council |
| HSSC➣Human Services Standing Committee (Australia) |
| HSSC➣High-Speed Serial Communication |
| HSSC➣High School Summer College (Stanford University) |