MCB
MCB stands for:
- Main control block, a physical or logical control unit, for example, in a control system
- Management Consultants Bradford Ltd, former name of the English publisher Emerald Group Publishing
- Marine Corps Base, a base of the United States Marine Corps, see list of bases of the U.S. Marine Corps
- IATA code for McComb ( Pike County), MS, USA
- Miniature Circuit Breaker, see circuit breaker
- Short form for the car manufacturer Mercedes -Benz
- Monochlorobenzene, a chlorobenzene
- Mauritius Commercial Bank, the largest banking group in Mauritius
- Disambiguation
- Abbreviation