| Acronym | Definition |
|---|
| MCB | Molecular and Cellular Biology (journal) |
| MCB | Marine Corps Base |
| MCB | Muslim Council of Britain |
| MCB | Miniature Circuit Breaker |
| MCB | Miami City Ballet (Florida) |
| MCB | Monfort College of Business (University of Northern Colorado) |
| MCB | Mauritius Commercial Bank |
| MCB | Mini Circuit Breaker |
| MCB | Master Cell Bank (stablized cell culture) |
| MCB | Massachusetts Commission for the Blind |
| MCB | Mobile Construction Battalion |
| MCB | Monochlorobenzene |
| MCB | Main Circuit Breaker |
| MCB | Magnetic Circuit Breaker (electronics) |
| MCB | Memory Control Block |
| MCB | Malaysian Cocoa Board |
| MCB | Main Control Board |
| MCB | Movement Control Battalion |
| MCB | Muslim Commercial Bank Ltd (Pakistan) |
| MCB | Mlu1 Cell Cycle Box (anti-cancer genetic entity) |
| MCB | Message Control Block |
| MCB | Manual Control Box |
| MCB | Mass of Christian Burial |
| MCB | Missouri Council of the Blind |
| MCB | Markham Concert Band (Markham, ON, Canada) |
| MCB | Medina Community Band (Medina, OH) |
| MCB | Molded Circuit Board |
| MCB | Master Car Builders Association (became American Railroad Association in 1918; now Association of American Railroads) |
| MCB | Marshall's Civic Band (Topeka, KS) |
| MCB | Multi-Channel Buffer |
| MCB | Manually Controlled Barrier |
| MCB | Messenger Call Box (Bafo Technologies) |
| MCB | Matheson Coleman & Bell (chemical company) |
| MCB | Madison Community Band (Madison, TN) |
| MCB | Mexico Convention Bureau |
| MCB | Multilateral Control Board |
| MCB | Mason Community Band (Mason, OH) |
| MCB | Montrose Community Band (Montrose, CO) |
| MCB | Montclair Community Band (Montclair, NJ) |
| MCB | Maynard Community Band (Maynard, MA) |
| MCB | Meridian Community Band (Okemos, MI) |
| MCB | Manage Civilians to Budget |
| MCB | Manawatu Concert Band (Palmerston North, New Zealand) |
| MCB | Money Center Bank (financial center; various locations) |
| MCB | Middlesex Concert Band (Wakefield, MA) |
| MCB | Mastership in Clinical Biochemistry |
| MCB | Media City Berlin |
| MCB | Maintenance Control Board |
| MCB | Miller-Chang Bound |
| MCB | Milford Community Band (Milford, DE) |
| MCB | Marion Community Bands (Marion, IA) |
| MCB | Manned Crossing with Barriers (UK railways) |
| MCB | Mexican Cornbread |
| MCB | Mercer Community Band (Mercer, PA) |
| MCB | Monterey Community Band (Monterey, CA) |
| MCB | Manningham Concert Band |
| MCB | Maumee Community Band (Maumee, OH) |
| MCB | Manchester Community Band (Manchester, IA) |
| MCB | Michigan Commision for the Blind |
| MCB | Manufacturer Charge Back (grocery industry) |
| MCB | Medalist Concert Band (Bloomington, MN) |
| MCB | Master Clock Board |
| MCB | Milford Concert Band (Milford, CT) |
| MCB | McKinney Community Band (McKinney, TX) |
| MCB | Mobility Concept Briefing |
| MCB | Managing Civilian Workforce to Budget |
| MCB | Merrymeeting Community Band (Topsham, ME) |
| MCB | Merion Concert Band (Merion Station, PA) |
| MCB | Minton-Capehart Building (Indianapolis) |
| MCB | Minimum Consumption Basket |
| MCB | Multi-function Channel Bank (telephony) |
| MCB | Mizuho Corporate Bank, Ltd. (Japan) |
| MCB | Mobile Communications Business |
| MCB | Motocyclette Club de la Bresle (French motorcycle club) |
| MCB | Medical Coding and Billing |
| MCB | Manchester Civic Band (North Manchester, IN) |