The year 2001

Mind-Machine Interface, connecting the human or animal brain to digital equipment

Man-machine interface, the "layer" that separates a human that is operating a machine from the machine itself

Marymount International School of Rome, the private, Catholic, co-educational K-12 school in Rome, Italy

Marina Militare Italiana, the Italian Navy

Maximum Mutual Information criterion, a statistical estimation method, which is an alternative to the widely used Maximum Likelihood Estimation

Modified Mercalli intensity scale, an earthquake intensity measure

Multi Media Interface, an in-car interface system developed by Audi

Multimodal Interaction Activity, managed by the W3C consortium

Manufacturers Mutual Insurance, a former Australian insurance company, now owned by Allianz AG and called Allianz Australia

Madison Media Institute, a college of media arts located in Madison, WI now owned by American Higher Education Development

Monolithic Memories, Inc. (1969-1987), a semiconductor manufacturer

Man-machine interaction, the study of interaction between people (users) and computers

MMI Preparatory School a prep school located in Freeland, Pennsylvania