MMU may refer to: Science and technology Memory management unit, a computer component Manned Maneuvering Unit, a NASA spacesuit rocket pack
Milli mass unit, an unofficial unit of mass Monomethylurea, a urea in synthetic medication
Education Manchester Metropolitan University, England Marymount University, Arlington, Virginia, US Mount Mansfield Union High School, Jericho, Vermont, US Mount Meru University, Arusha, Tanzania Mountains of the Moon University, Fort Portal, Uganda Multimedia University, Malaysia Myanmar Maritime University, Thanlyin
Military Mobile Meteorological Unit, of the British Armed Forces Milli Muharip Uçak, a Turkish fighter aircraft in development
Other uses Mega Man Universe, a game by Capcom Morristown Municipal Airport, New Jersey, US (IATA:MMU)