| Abbreviation | Definition |
|---|---|
| MMBA | Madurai Bench of Madras Bar Association (India) |
| MMBA | Maine Mud Bog Association |
| MMBA | Master Mariners Benevolent Association |
| MMBA | Michigan Medical Billers Association |
| MMBA | Michigan Mount Bikers Association |
| MMBA | Michigan Mountain Biking Association (Waterford, Michigan) |
| MMBA | Mid Minnesota Builders Association |
| MMBA | Mississauga Minor Basketball Association (Canada) |
| MMBA | Mississippi Malt Beverage Association |
| MMBA | Moab Mountain Bike Association |
| MMCA | Maryland Minority Contractors Association |
| MMCA | Maryland Municipal Clerks Association |
| MMCA | Michigan Mosquito Control Association |
| MMDA | Mid Michigan Dart Association |
| MMDRA | Midwest Motorcycle Drag Racing Association |
| MMGA | Massachusetts Master Gardener Association |
| MMGA | Massachusetts Master Gardeners Association |
| MMGA | Michigan Master Gardener Association |
| MMGA | Mountain Mandarin Growers Association |
| MMHA | Malaysia Mental Health Association |