| Acronym | Definition |
|---|
| SSRO | Single Source Regulations Office (UK) |
| SSRO | Site Specific Research Organization (healthcare) |
| SSRO | Star Shadows Remote Observatory |
| SSRO | Sagittal Split Ramus Osteotomy (maxillofacial surgery) |
| SSRO | Service, Support, Research and Others (International Organization for Standardization) |
| SSRO | Solent Sea-Rescue Organisation (independent lifeboats in and around the Solent and Isle of Wight, Uk) |
| SSRO | Stockholm Street Race Organisation |
| SSRO | System Safety and Reliability Office |
| SSRO | Sector Scan Receive Only |