HSSO
| Acronym | Definition |
|---|---|
| HSSO | Hospitality Sales Solutions (UK) |
| HSSO | Health Service Support Officer |
| HSSO | Hertfordshire Schools Symphony Orchestra (UK) |
| HSSO | Heads of Services and Staff Offices |
| HSSO | High Sagittal Supraforaminal Osteotomy (orthopedic surgery) |
| HSSO | Health Services Support Organization (University of Florida; Gainesville, FL) |