| 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 |