MCB or mcb may be used as an abbreviation for:
Maidenhead Citadel Band of The Salvation Army
Miniature Circuit Breaker, a relatively small circuit breaker fitted in consumer units and small distribution boards.
Memory Control Block
Mauritius Commercial Bank, the oldest and largest banking institution in Mauritius
Methodist College Belfast, a voluntary grammar school in Belfast, Northern Ireland.
The Muslim Council of Britain, an organisation promoting unity among traditional Muslims in the United Kingdom
Molecular Cell Biology, a scientific journal published by the American Society for Microbiology
Monochlorobenzene, an aromatic organic compound
Music Colony Bi-weekly, a music magazine in Hong Kong.
Muslim Commercial Bank, a network of bank in Pakistan.
MCB Tower, a skyscraper in Pakistan, owned by Muslim Commercial Bank.
McComb , Mississippi, United States; Amtrak station code MCB.
Mary Claire Busk, A women living at the Work College of the People of Praise, Greenlawn Ca