UMSG
| Acronym | Definition |
|---|---|
| UMSG | University of Maine Student Government |
| UMSG | Urban Ministries Support Group (Nairobi, Kenya) |
| UMSG | Urban Ministries Serving God (Kenya) |
| UMSG | Upper Midwest Soapmakers Guild |
| UMSG | Utrechts Medisch Sigaren Genootschap (Dutch: Utrecht Medical Cigar Society) |