| Acronym | Meaning |
| MBCC | Migratory Bird Conservation Commission (U.S.) |
| MBBL | (U.S. Armor Center) Mounted Battlespace Battle Laboratory |
| MBCS | Multi-Byte Character Set |
| MBE | Member Of The Order Of The British Empire |
| BM | Bambara Language (ISO 639-1 Code) |
| TBT | Tributyltin |
| MBIDST | Member Of The British Institute Of Dental And Surgical Technologists |
| BODMAS | Brackets |
| MEDS | Mission Essential Data Set |
| MRSA | Methicillin-resistant Staphylococcus Aureus |