| Abbreviation | Definition |
|---|---|
| MBCS | Member of the British Computer Society |
| MBE | Member of the (Most Excellent Order of the) British Empire |
| MBE | Member of the British Empire |
| MBGN | Most Beautiful Girl in Nigeria |
| MBLA | Mountain Bike Leader Awards |
| MBNQA | Malcolm Baldrige National Quality Award |
| MBP | Most Ballinest Playa |
| MC | Military Cross |
| MCA | Marketing Communications Awards |
| MCAD | Microsoft Certified Application Developer |
| MCAD | Microsoft Certified Applications Developer |
| MCDBA | Microsoft Certified Data Base Administrator |
| MCDBA | Microsoft Certified DataBase Administrator |
| MCDST | Microsoft Certified Desktop Support Technician |
| MCEM | Membership College of Emergency Medicine |
| MCIPS | Membership of Chartered Institute of Purchasing Supply |
| MCITP | Microsoft Certified Information Technology Professional |
| MCMA | Missouri Collegiate Media Awards |
| MCNE | Master Certified Novell Engineer |
| MCPS | Member of the College of Physicians and Surgeons |