| Acronym | Definition |
|---|
| HSSD➣Health and Social Services Department |
| HSSD➣High Sensitivity Smoke Detector |
| HSSD➣Howard-Suamico School District (Green Bay, WI) |
| HSSD➣Hot Springs School District (Hot Springs Arkansas) |
| HSSD➣Holly Springs School District (Holly Springs, Mississippi) |
| HSSD➣Hospital Sterile Services Department |
| HSSD➣High Sensitive Smoke Detector |
| HSSD➣Hot Standby Space Diversity |
| HSSD➣HyperSpace Secure Daemon |
| HSSD➣Hispanic-Serving School District (various locations) |
| HSSD➣High Speed Service Delivery |
| HSSD➣Health Systems and Services Development |