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

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

Other uses

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