| Abbreviation | Definition |
|---|---|
| MBA | Metropolitan Builders Association |
| MBAA | Masters of Business Administration Association |
| MBAA | Mississippi Bail Agents Association |
| MBAA | Myrtle Beach Apartment Association |
| MBANT | Master Builders Association Northern Territory |
| MBBA | McFarland Boys Basketball Association |
| MBBA | Memphis Bioworks Business Association |
| MBBA | Metropolitan Black Bar Association |
| MBBA | Miami Beach Bar Association |
| MBBA | Michigan Bed and Breakfast Association |
| MBBA | Midwest Bucking Bull Association |
| MBBA | Minnesota Bed and Breakfast Association |
| MBBA | Myanmar Britain Business Association |
| MBCA | Massachusetts Bay Constables Association |
| MBCA | Metropolitan Business and Citizens Association |
| MBCA | Morongo Basin Conservation Association |
| MBCA | Myrtle Beach Coaches Association |
| MBDA | Maine Band Directors Association |
| MBDA | Malt Beverage Distributors Association |
| MBDA | Maryland Band Directors Association |