| MCB | Madison Community Band 
| Others |
| MCB | Maduro and Curiel Bank
| Others |
| MCB | Maidenhead Citadel Band
| Others |
| MCB | Main Circuit Board
| Others |
| MCB | Main Circuit Breaker
| Others |
| MCB | Main Control Board
| Others |
| MCB | Main Course Book
| Others |
| MCB | Maintainer Custom Bodies
| Others |
| MCB | Major Crime Branch
| Others |
| MCB | Mando Corporation Do Brasil
| Others |
| MCB | Manhattan Central Booking
| Others |
| MCB | Manual Call Box
| Others |
| MCB | Manufacturer Charge Back
| Others |
| MCB | Mara College Banting
| Others |
| MCB | Marijuana Control Board
| Others |
| MCB | Marine Corporation Base
| Others |
| MCB | Marine Corps Base
| Others |
| MCB | Marketing and Consumer Behavior
| Others |
| MCB | Mary Casey Black
| Others |
| MCB | Massachusetts Commission for the Blind
| Others |
| MCB | Master Cell Bank
| Others |
| MCB | Master Circuit Breaker
| Others |
| MCB | Maximum Contiguous Block
| Others |
| MCB | Mecklenburg County Bar
| Others |
| MCB | Media Coordination Bureau
| Others |
| MCB | Medium Chamber Bright
| Others |
| MCB | Memory Control Block
| Others |
| MCB | Memory Controller Block
| Others |
| MCB | Merchants Credit Bureau
| Others |
| MCB | Merlot Cabernet Barbera
| Others |
| MCB | Message Control Block
| Others |
| MCB | Messenger Call Box
| Others |
| MCB | Metaplastic Carcinoma of Breast
| Others |
| MCB | Meter Cover Box
| Others |
| MCB | Metropolitan Capacity Building Program
| Others |
| MCB | Metropolitan Commercial Bank
| Others |
| MCB | Miami City Ballet
| Others |
| MCB | Michaelson Connor Boul
| Others |
| MCB | Michelin Challenge Bibendum
| Others |
| MCB | Micro Channel Bus
| Others |
| MCB | Mid Columbia Ballet
| Others |
| MCB | Military Circuit Board
| Others |
| MCB | Milk and Cereal Bars
| Others |
| MCB | Mill Creek Building
| Others |
| MCB | Mini Club Brabant
| Others |
| MCB | Miniature Circuit Board
| Others |
| MCB | Miniature Circuit Breaker
| Others |
| MCB | Miniature Circuit Breakers
| Others |
| MCB | Minnesota Certification Board
| Others |
| MCB | Miracle Come Back
| Others |
| MCB | Missouri Contemporary Ballet
| Others |
| MCB | Mizuho Corporate Bank
| Others |
| MCB | Mobile Command Base
| Others |
| MCB | Mobile Communications Business
| Others |
| MCB | Mobile Construction Battalion
| Others |
| MCB | Modified Cement Based
| Others |
| MCB | Moffitt Clinic Building
| Others |
| MCB | Molecular and Cell Biology
| Others |
| MCB | Molecular and Celluar Biology
| Others |
| MCB | Molecular and Cellular
| Others |
| MCB | Molecular and Cellular Biology
| Others |
| MCB | Molecular and Cellular Biosciences
| Others |
| MCB | Molecular and Computational Biology
| Others |
| MCB | Molecular Cell Biology
| Others |
| MCB | Moltor Cluster Bomb
| Others |
| MCB | Monfort College of Business
| Others |
| MCB | Mopar Clube Brasil
| Others |
| MCB | Morning Club Brew
| Others |
| MCB | Motor Circuit Breaker
| Others |
| MCB | Motor Control Board
| Others |
| MCB | Motorhome Club Belge
| Others |
| MCB | Motorworld Classics Berlin
| Others |
| MCB | Mountain Commerce Bank
| Others |
| MCB | Mouvement Culturel Berbere
| Others |
| MCB | Movement Control Battalion
| Others |
| MCB | Multi Collision Brake
| Others |
| MCB | Multi Communication Bar
| Others |
| MCB | Multi Context Broker
| Others |
| MCB | Multi Customer Briefing
| Others |
| MCB | Multicab
| Others |
| MCB | Muslim Commercial Bank
| Others |
| MCB | Muslim Council of Britain
| Others |