MBC
- 4-methylbenzylidene camphor
- MBC Group
- MBC Media Group
- MBC Networks
- MBC News Now
- MBC TV (South Korean TV channel)
- MBC-550
- Maidstone Borough Council
- Main-belt comet
- Major Broadcasting Cable Network
- Makati Business Club
- Malawi Broadcasting Corporation
- Manado
- Manchester Baseball Club
- Marshalls Broadcasting Company
- Mary Baldwin College
- Massachusetts Bay Colony
- Master of Business Communication
- Mathieu Bock-Côté
- Matthew Boulton College
- Mauritius Broadcasting Corporation
- Mesoamerican Biological Corridor
- Metaplastic breast cancer
- Metastatic breast cancer
- Meteor burst communications
- Metropolitan Borough
- Miami Boys Choir
- Michigan Brewing Company
- Midwest Basketball Conference
- Minaminihon Broadcasting
- Minimum bactericidal concentration
- Minneapolis Business College
- Missinipi Broadcasting Corporation
- Missouri Baptist Convention
- Mitteldeutscher BC
- Monster Buster Club
- Morris Brown College
- Munhwa Broadcasting Corporation
- Museum of Broadcast Communications
- Mutual Benefits Corporation
- My Broadcasting Corporation
- Myoblast city
- Transports de la région Morges-Bière-Cossonay