| MOSG | Mangalore Orthodontic Study Group
| Others |
| MOSG | Maryland Oral Surgery Group
| Others |
| MOSG | Massive Open Serious Games
| Others |
| MOSG | Medical Operational Support Group
| Others |
| MOSG | Memorial Orthopaedic Surgical Group
| Others |
| MOSG | Memorial Orthopedic Surgical Group
| Others |
| MOSG | Mercy Orphans Support Group
| Others |
| MOSG | Miami of Ohio Strategy Gaming
| Others |
| MOSG | Michigan Open Source Group
| Others |
| MOSG | Middle Office Services Group
| Others |
| MOSG | Modified oxide sol gel
| Others |
| MOSG | Morrowind Overhaul Sounds And Graphics
| Others |
| MOSG | Morski Oddzial Strazy Granicznej
| Others |
| MOSG | Mossy Oak Shadow Grass
| Others |
| MOSG | Mulodo Open Study Group
| Others |
| MOSG | Municipality of Stari Grad
| Others |