| Abbreviation | Definition |
|---|---|
| MSBA | Military Spouse Business Association |
| MSBS | Military Superannuation and Benefits Scheme |
| MSC | Chief Mess Specialist |
| MSC | Major Subordinate Command |
| MSC | Major Systems Command |
| MSC | Maritime Support Center |
| MSC | Mechanized Soldier Carrier |
| MSC | Medical Service Corps |
| MSC | Military Sealift Command |
| MSC | Military Staff Committee |
| MSC | Mission Support Center |
| MSC | Mission Support Confirmation |
| MSCA | Military Support to Civil Authorities |
| MSCA | Military Support to Civilian Authorities |
| MSCC | Military Spouse Chamber of Commerce |
| MSCD | Military Support to Civil Defense |
| MSCI | Minnesota Supercomputer Center, Inc |
| MSCI | Minnesota Supercomputer Center, Incorporated |
| MSCLEA | Military Support to Civilian Law Enforcement Agencies |
| MSCM | Master Chief Mess Specialist |