| Acronym | Definition |
|---|
| MASC➣Member, Associated Stress Consultants (UK) |
| MASC➣Mammary Analogue Secretory Carcinoma (gland tumor) |
| MASC➣Manuscripts, Archives, and Special Collections (various libraries) |
| MASC➣Multicast Address-Set Claim (protocol) |
| MASC➣Mas Controller |
| MASC➣Multicast Address Set Claim |
| MASC➣Mitsubishi Active Stability Control |
| MASC➣Manitoba Agricultural Services Corporation (Canada) |
| MASC➣Municipal Association of South Carolina |
| MASC➣Master of Applied Science |
| MASC➣Multidimensional Anxiety Scale for Children |
| MASC➣Multi-Angle Snowflake Camera |
| MASC➣Mount Alexander Shire Council (Australia) |
| MASC➣Mid-Atlantic Song Contest (Songwriters' Association of Washington) |
| MASC➣Massachusetts Association of School Committees |
| MASC➣Making a Significant Change (various organizations) |
| MASC➣Medical Arts Surgery Center (Miami, Florida) |
| MASC➣Maryland Association of Student Councils |
| MASC➣Multinational Arabidopsis Steering Committee (molecular biology) |
| MASC➣Massachusetts Association of Student Councils |
| MASC➣Mid Atlantic Safety Council (North Carolina and South Carolina) |
| MASC➣Multiple-Award Schedule Contract |
| MASC➣Michigan Association of Student Councils (Lansing, Michigan) |
| MASC➣Multipotent Adult Stem Cell |
| MASC➣Medical Academic Staff Committee (British Medical Association; UK) |
| MASC➣Master of Arts in School Counseling |
| MASC➣Myomer Accelerator Signal Circuitry (Mechwarrior Universe games) |
| MASC➣Myotube-Associated Specificity Component |
| MASC➣Matsushita Avionics Systems Corporation |
| MASC➣Michigan Association of Senior Centers |
| MASC➣Multiple Access Source Code |
| MASC➣Maximum Allowable Stack Concentration |
| MASC➣Mission and Safety Critical |
| MASC➣Marine Aquarium Society of Colorado (web forum) |
| MASC➣Modeling Analysis & Simulation Center |
| MASC➣Marine Air Ground Task Force Automated Service Center |
| MASC➣Maintenance and Support Concept |
| MASC➣Marconi Advanced Scrambler |
| MASC➣Multiarray Signal Conditioner |
| MASC➣Multiple-Antenna Signal Constellation |
| MASC➣Maintenance Support Concept |
| MASC➣Massachusetts Avenue Surgery Center (Bethesda, MD) |
| MASC➣Michigan Association of Service Coordinators |
| MASC➣Mission d'Appui à la Situation de Crise (French: Crisis Situation Support Mission) |