MMR

MMR may refer to:

Science and technology

• MMR vaccine, for measles, mumps and rubella
• DNA mismatch repair, a genetic repair pathway
• Mass miniature radiography, a tuberculosis screening technique
• Maternal mortality ratio
• Maternal mortality rate
• Mean-motion resonance, between two orbiting bodies
• Mesozoic Marine Revolution, a burst of evolution
• Micro modular reactor, a subcategory of Small Modular Reactors,  much smaller in scale than traditional nuclear reactors

Computing

• Meet-me room, where telecoms companies can communicate
• Modified Modified READ, Group 4 compression
• Matchmaking rating, in video games

Places

• Myanmar (ISO 3166-1 alpha-3 country code)
• Mumbai Metropolitan Region, India
• Manmad Junction railway station (station code: MMR), Maharashtra, India

Other uses

• Marine Mammal Regulations, of Canada
• Master of Marketing Research, a business degree
• Middle Gorge railway station, Melbourne