| MBEC | Maha Barathi Engineering college 
| Others |
| MBEC | Mandalay Bay Events Center
| Others |
| MBEC | Manitoba Building Envelope Council
| Others |
| MBEC | Medical Billing Executive Conference
| Others |
| MBEC | Medical Biological Engineering Computing
| Others |
| MBEC | Mercedes Benz Enthusiasts Club
| Others |
| MBEC | Mercedes Benz of El Cajon
| Others |
| MBEC | Minimal Biofilm Eradication Concentration
| Others |
| MBEC | Minimum Biofilm Eliminating Concentration
| Others |
| MBEC | Minimum Biofilm Eradication Concentration
| Others |
| MBEC | Minority Business Enterprise Center
| Others |
| MBEC | Mississauga Business Enterprise Centre
| Others |
| MBEC | Monterey Bay Educational Center
| Others |
| MBEC | Monterey Bay Educational Consortium
| Others |
| MBEC | Multicultural Business Education Cohort
| Others |