| MBB | Make Before Break 
| Others |
| MBB | Malayan Banking Berhad
| Others |
| MBB | Malta Business Bureau
| Others |
| MBB | Marble Bar, Western Australia, Australia
| Others |
| MBB | Marina Bay Blue
| Others |
| MBB | Master Black Belt
| Others |
| MBB | Master Boot Block
| Others |
| MBB | Master of Biomanufacturing and Bioprocessing
| Others |
| MBB | McKinsey BCG and Bain
| Others |
| MBB | Medial Branch Block
| Others |
| MBB | Mediators Beyond Borders
| Others |
| MBB | Medical Biochemistry and Biophysics
| Others |
| MBB | Medical Business Bureau
| Others |
| MBB | Men Behaving Badly
| Others |
| MBB | Mercedes Benz Bank
| Others |
| MBB | Mercedes Benz Belgium
| Others |
| MBB | Mercedes Benz Brisbane
| Others |
| MBB | Mercedes Benz Bus
| Others |
| MBB | Mercedes Benz Do Brasil
| Others |
| MBB | Mercedes Benz of Brooklyn
| Others |
| MBB | Messerschmitt-Bolkow-Blohm
| Others |
| MBB | Mind Brain and Behavior
| Others |
| MBB | Mind Brain Behavior
| Others |
| MBB | Mind/Brain/Behavior Interfaculty Initiative
| Others |
| MBB | Mini Baja Buggy
| Others |
| MBB | Minimum Bounding Box
| Others |
| MBB | Minnesota Beer Box
| Others |
| MBB | Mission Based Budgeting
| Others |
| MBB | Mobile BroadBand
| Others |
| MBB | Mobile Brochure Builder
| Others |
| MBB | Model Buiding Block
| Others |
| MBB | Modular Building Blocks
| Others |
| MBB | Modulated Broadband
| Others |
| MBB | Moisture Barrier Bag
| Others |
| MBB | Molecular Biology and Biochemistry
| Others |
| MBB | Molecular Biology and Biotechnology
| Others |
| MBB | Molecular Biophysics and Biochemistry
| Others |
| MBB | Monterey Bay Birds
| Others |
| MBB | Montgomery Bus Boycott
| Others |
| MBB | Mopar Big Block
| Others |
| MBB | Moustache Bronx Brotherhood
| Others |
| MBB | Moved By Bikes
| Others |
| MBB | Muller Bressler Brown
| Others |
| MBB | Multiplier Broadband
| Others |
| MBB | Muslim Background Believer
| Others |
| MBB | My best Bill
| Others |
| MBB | My Best Bud
| Others |