MB

MB, Mb, mB or mb may mean:

• Megabit (1,000,000 bits), preferred symbols Mb
• Megabyte (1,000,000 bytes), preferred symbol MB
• Mebibyte (2²⁰ = 1,048,576 bytes), preferred symbol MiB

MB may mean:

• Bachelor of Medicine, an academic degree (Latin Medicinae Baccleureus)
• MacBook, an Apple Computer
• Manitoba (Canadian Province/Territory Code)
• Maribor, a city in Slovenia
• Martinique: FIPS PUB 10-4 territory code
• Medal of Bravery (Canadian decoration post-nominal letters)
• Mercedes-Benz, a German brand of automobiles, buses, coaches and trucks
• Motherboard

Mb may mean:

• Myoglobin, a type of protein chain

mb may mean:

• Millibar, a unit of pressure. Sometimes written as mBar.