SSSO
| Acronym | Definition |
|---|---|
| SSSO | Specialized Satellite Services Operator |
| SSSO | Secure Single Sign on |
| SSSO | Single Switched Socket Outlet (electricity) |
| SSSO | Secure Single Sign-On |
| SSSO | Stay Strong, Starve On |
| SSSO | St Saviours and St Olaves (UK school/church) |
| SSSO | Standard Systems Support Office |
| SSSO | Sherborne Schools' Symphony Orchestra (UK) |
| SSSO | Specialized Surplus Sales Office |
| SSSO | Same Source, Same Output |
| SSSO | same-sex sexual orientation |