| Acronym | Definition |
|---|
| MBNA➣Monument Builders of North America |
| MBNA➣Mercedes-Benz North America |
| MBNA➣Maryland Bank, National Association |
| MBNA➣Registered Member of the British Naturalists' Association (UK) |
| MBNA➣Maryland Bank North America |
| MBNA➣Medicine Bow Nordic Association (skiing; Laramie, WY) |
| MBNA➣Mount Baker Nurses Association (Bellingham, Washington) |