| Rank | Abbreviation | Meaning |
|---|
| ***** | MCMA | Member of the Complementary Medical Association
| |
| **** | MCMA | Malaysia Cable Manufacturers Association
| |
| **** | MCMA | Mutuelle Centrale Marocaine d'Assurances
| |
| *** | MCMA | Marin County Motorcycle Association
| |
| *** | MCMA | Medisch Centrum Maastricht Annadal
| |
| ** | MCMA | Missouri City Management Association
| |
| ** | MCMA | Midwest Circulation Management Association
| |
| ** | MCMA | Modified Constant Modulus Algorithm
| |
| ** | MCMA | Mass Communication and Media Arts
| |
| ** | MCMA | Multi Carrier Multi Antenna
| |
| * | MCMA | Murrumbidgee Catchment Management Authority
| |
| * | MCMA | Manitoba Conservatory of Music and Arts
| |
| * | MCMA | Murray Catchment Management Authority
| |
| * | MCMA | Modesto Confidential and Management Association
| |
| * | MCMA | Mexico City Metropolitan Area
| |
| * | MCMA | Manitoba Country Music Association
| |
| * | MCMA | Mallee Catchment Management Authority
| |
| * | MCMA | Marine Corps Musicians Association
| |
| * | MCMA | Materials with Controlled Microstructural Architecture
| |
| * | MCMA | Middlesex County Medical Association
| |
| * | MCMA | Middlebury College Museum of Art
| |
| * | MCMA | Monte Carlo Minimization Annealing
| |
| * | MCMA | Minnesota Concrete Masonry Association
| |
| * | MCMA | Metroplex Country Music Association
| |
| * | MCMA | Menlo Community Medical Alliance
| |