| Acronym | Definition |
|---|
| NMSC | National Merit Scholarship Corporation |
| NMSC | Non-Melanoma Skin Cancer |
| NMSC | National Marine Safety Committee (Australia) |
| NMSC | North Mississauga Soccer Club (Mississauga, Ontario, Canada) |
| NMSC | New Mexico Supreme Court (Santa Fe, NM) |
| NMSC | National Main Street Center |
| NMSC | Northern Manitoba Sector Council (Manitoba, Canada) |
| NMSC | New Market Skills Center (Washington) |
| NMSC | Non-Motile Sperm Count |
| NMSC | Non-Metallic Sheathed Cable |
| NMSC | Navy-Marine Corps Spectrum Center (US DoD) |
| NMSC | National Middle School Conference |
| NMSC | National Memory Systems Corporation |
| NMSC | Newport Mesa Soccer Club (California) |
| NMSC | Nerve and Muscle Stimulating Current (therapy) |
| NMSC | Network Management Systems Certification |
| NMSC | National Compliance Management Service, Inc. (contract monitoring; Hutchinson, KS) |
| NMSC | Network Minimal Subset Cut |
| NMSC | National Marketing & Sales Company |