MMB may refer to: Music Michigan Marching Band, of the University of Michigan The Mighty Mighty Bosstones, a band from Boston
Computing, science, and technology MMB (cipher), a block cipher in cryptography 3-Mercapto-3-methylbutan-1-ol, a chemical found in some wines Minimal metabolic behaviors, for modeling metabolic networks Middle mouse button, a button on the computer mouse
Other uses Maharashtra Maritime Board Maritime Museum of Barcelona Memanbetsu Airport, an airport at Hokkaidō, Japan (IATA airport code: MMB) Milk Marketing Board, a former British government quango