| 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) |