| Acronym | Definition |
|---|
| MMU | Manchester Metropolitan University (UK) |
| MMU | Memory Management Unit |
| MMU | Multimedia University |
| MMU | Master of Music (degree; various locations) |
| MMU | Manned Maneuvering Unit (NASA) |
| MMU | Mesh Multiring Upgrade |
| MMU | Media Monitoring Unit (various locations) |
| MMU | Minimum Mapping Unit |
| MMU | Mineral Makeup |
| MMU | Multinational Medical Unit (NATO) |
| MMU | Mass Memory Unit |
| MMU | Mount Mansfield Union (high school; Jericho, Vermont) |
| MMU | Mobile Medical Unit |
| MMU | Memorandum of Mutual Understanding (various locations) |
| MMU | Mora Municipal Utilities (Mora, MN) |
| MMU | Modified Modular Jack (terminal serial connector) |
| MMU | Morristown, NJ, USA - Morristown (Airport Code) |
| MMU | Mobile Manufacturing Unit |
| MMU | Microwave Measurement Unit |
| MMU | Malaysian Multimedia University |
| MMU | Material Mark-Up (cost models) |
| MMU | Medicare Modernization Update (US DHHS) |
| MMU | Military Medical University (China) |
| MMU | Mobile Meteorological Unit |
| MMU | Multi Media Unit |
| MMU | Modular Memory Unit (NASA) |
| MMU | Maintained Mark-Up |
| MMU | Microfinance and Microenterprise Unit |
| MMU | Mini Mart Unit (US Navy) |
| MMU | Monadnock Mushroomers Unlimited (Keene New Hampshire) |
| MMU | Mini Melt Unit |