MM

Music

• MM (album), 1989, by Marisa Monte
• Maelzel's metronome, a music marking
• Marilyn Manson, an American musician
• Marshall Mathers, an American rapper (a.k.a. "Eminem")
• Mother Mother, a Canadian band
• Master of Music, an academic degree
• Melody Maker British music publication
• "MM", a 1993 song by Mr. President
• Major Moment, an American rock music band from Boston, Massachusetts

Television

• MM (TV channel), Bulgaria
• The Tomb of the Cybermen, a 1967 Doctor Who serial (production code MM)

Other media

• MM!, a Japanese light novel, manga and anime series by Akinari Matsuno
• Media Molecule, a video game developer in England
• Monster Manual, a 1977 Dungeons & Dragons source book
• Mother's Milk (character), aka "MM", a fictional character in The Boys comicbook franchise

• MM (TV channel), Bulgaria
• Maryknoll, a Catholic religious institute
• Maybach-Motorenbau and Maybach-Manufaktur and Mercedes-Maybach, an engine and car marque
• Mayr-Melnhof, Austrian packaging company
• Media Molecule, a video game developer in England
• Middle-market company or mid-market companies have annual revenues of $50 million to $1 billion or between 100 and 1000 employees
• Moderation Management, an alcohol support group
• Mumbai Magicians, a defunct Hockey India League franchise
• Leipzig Trade Fair, whose logo reads "MM", an abbreviation for Mustermesse (English: sample fair)
• Peach Aviation (IATA code: MM)
• SAM Colombia (former IATA code: MM)

• Machinist's Mate in the US Navy
• Master mariner
• Master of Management, a degree
• Master of Medicine, a degree
• Master of Music, a degree
• Military Medal, British and Commonwealth
• Minister Mentor, a Singapore cabinet position
• messieurs, a plural honorific in French

• Metro Manila, the Philippines' national capital region
  • Mega Manila, its larger metropolis
• Myanmar (ISO 3166-1 country code: MM)

Computing

• .mm, Internet country code top-level domain for Myanmar
• ".mm", the file extension for FreeMind and Freeplane data files
• ".mm", the file extension for source code files of Objective-C++
• mm tree, the Andrew Morton's Linux kernel tree
• MM algorithm, an iterative method for constructing optimization algorithms
• Columbia MM, an early e-mail client
• Multiple master fonts
• Mattermost, an online chat service

Units of measurement

• Megametre (Mm) (rare) 1,000 km
• Mile Marker (MM)
• Millimetre (mm)
• Millimolar (mM), a unit of concentration of a solution
• Momme, a unit of textile measurement
• One million (MM), used in reference to currency
• Percent concentration by mass (m/m%, %m/m, or m%), a unit of relative mass concentration
• m.m., a measured mile, when distinct from a computed mile (c.m.)

Other uses in science, technology, and mathematics

• Middle Minoan, an archaeological period
• Minimax or maximin, a decision rule
• Mischmetal, alloy of similar lanthanoids
• Modified Mercalli scale for earthquake intensity
• Molecular mechanics, computational chemistry technique
• Moving magnet, phonograph cartridge type
• Moving mean, in statistics
• Multiple myeloma, blood cancer

• 2000 (number), in Roman numerals
• The year 2000, in Roman numerals
• Mutatis mutandis ("m.m."), Latin expression meaning "with things changed that should be changed"
• MM (New York City Subway service), a former New York City Subway service
• Meitei Mayek, the writing system of Meitei language