| MMRA | Miniature Motorsports Racing Association | 小型赛车协会 |
| MMRA | Mergeminiature Motorsports Racing Association | 合并微型赛车协会 |
| MMRA | Medical Malpractice Reinsurance Association | 医疗事故再保险协会 |
| MMRA | Miracle Mile Residential Association | 奇迹英里住宅协会 |
| MMRA | Mobilization Material Requirement Adjustment | 进场材料需求调整 |
| MMRA | Model Mutual Recognition Agreement | 相互承认协议范本 |
| MMRA | Minnesota Medical Records Act | 明尼苏达州医疗记录法案 |