RSSU
| Acronym | Definition |
|---|---|
| RSSU | Russian State Social University |
| RSSU | Rutland South Supervisory Union (Vermont) |
| RSSU | Russische Staatliche Sozialwissenschaftliche Universität (German; Moskow) |
| RSSU | République Socialiste des Soviets d’Ukraine |
| RSSU | Unrestricted Sum of Squared Residuals |
| RSSU | Regional Switch Surveillance Unit (Sprint) |
| RSSU | Remote Site Simulation Unit |
| RSSU | Radiological Safety Service Unit |