| Term | Full Form | Category |
|---|---|---|
| RSSM | Rail Security Sensitive Materials | Others |
| RSSM | Recruiting and Staffing Solutions Magazine | Others |
| RSSM | Research in Social Stratification and Mobility | Others |
| RSSM | Research Specimen and Supply Management | Others |
| RSSM | Rose Society of Saddleback Mountain | Others |
| RSSM | Royal Stage School of Music | Others |