| Acronym | Definition |
|---|
| MMSc | Master of Medical Science |
| MMSc | Multi Media Service Centre |
| MMSc | Marine Mammal Stranding Center (Brigantine, New Jersey) |
| MMSc | Multimedia Messaging Service Center |
| MMSc | Multimedia Messaging Service Center (Comverse) |
| MMSc | Mobile Message Service Center |
| MMSc | Marshalltown Medical Surgical Center (Marshalltown, IA) |
| MMSc | Master of Management Sciences |
| MMSc | Mitsubishi Motor Sales Caribbean, Inc. (Mitsubishi vehicle distributor for Puerto Rico and the Caribbean) |
| MMSc | Multi-Modal Speech Coder |
| MMSc | Missile Monitor Signal Conditioner |
| MMSc | Maryland Mathematics and Science Coalition |