RSSM
| Acronym | Definition |
|---|---|
| RSSM | Rail Security-Sensitive Materials (Shipment) |
| RSSM | Research in Social Stratification and Mobility (journal) |
| RSSM | Republica Sovietica Socialista Moldoveneasca (Romanian: Moldavian Soviet Socialist Republic) |
| RSSM | Rose Society of Saddleback Mountain (California) |
| RSSM | Richie Sambora Signature Model (acoustic guitar) |
| RSSM | Rusty Stumps Scale Models (railroading; Fishers, IN) |