| MMTA | Maine Marine Trades Association 
| Others |
| MMTA | Maine Motor Transport Association
| Others |
| MMTA | Malaysian Motor Traders Association
| Others |
| MMTA | Maryland Motor Truck Association
| Others |
| MMTA | Massachusetts Marine Trades Association
| Others |
| MMTA | Massachusetts Motor Transport Association
| Others |
| MMTA | Massachusetts Music Teachers Association
| Others |
| MMTA | Michibago Music Teachers Association
| Others |
| MMTA | Michigan Municipal Treasurers Association
| Others |
| MMTA | Michigan Music Teachers Association
| Others |
| MMTA | Minnesota Music Teachers Association
| Others |
| MMTA | Minor Metal Trade Association
| Others |
| MMTA | Minor Metals Trade Association
| Others |
| MMTA | Missouri Music Teachers Association
| Others |
| MMTA | Multi Media Telecommunications Association
| Others |
| MMTA | Tlaxcala, Mexico
| Others |