| Abbreviation | Definition |
|---|---|
| MSBA | Manhattan Sports Business Academy |
| MSBA | Massachusetts Striped Bass Association |
| MSBA | Michigan State Bowling Association |
| MSC | Minnesota Ski Council |
| MSC | Montreal Soaring Council |
| MSCC | Madison Sports Car Club |
| MSCC | Michigan Sports Car Club |
| MSCI | Michigan Speech Coaches, Inc. |
| MSCL | Massachusetts State Cricket league |
| MSCS | Midwest Sprint Car Series |
| MSCT | Motor Sport Club of Tasmania |
| MSE | Motor Sports Edition |
| MSF | Minnesota Sports Federation |
| MSF | Motorcycle Stunt Fund |
| MSFA | Mid-States Football Association |
| MSFL | Middle School Football League |
| msgr | massager |
| MSII | Martial Science Institute International |
| MSL | Mechanized Skirmish League |
| MSL | Mid State League |