| Term | Full Form | Category |
|---|---|---|
| SMN(s) | Subsequent Malignant Neoplasms | Others |
| SMNS | Scene Matching Navigation System | Others |
| SMNS | Self Management Network Scotland | Others |
| SMNS | Selma Maisel Nursery School | Others |
| SMNS | Society of Micro and Nano Systems | Others |
| SMNS | South Mountain Nature School | Others |
| SMNS | Special Medical Needs Shelters | Others |
| SMNS | State of Minnesota North Star | Others |