Look up MM, Mm, mm., m.m., or MM. in Wiktionary, the free dictionary.

MM or variants may refer to:

Alphabets

• Meitei Mayek or Meetei Mayek, the writing system of Meitei language

Arts, entertainment, and media

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")
• Master of Music, an academic degree
• Melody Maker British music publication
• "MM", a 1993 song by Mr. President

Television

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

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

Businesses, organizations, and teams

• Middle-market company or mid-market companies have annual revenues of $50 million to $1 billion or between 100 and 1000 employees
• Maryknoll, a Catholic religious institute
• Maybach-Motorenbau GmbH and Maybach-Manufaktur and Mercedes-Maybach; an engine and car marque
• Moderation Management, alcohol support group
• Mumbai Magicians, a defunct Hockey India League franchise
• Peach (airline) (IATA code: MM)
• SAM Colombia (former IATA code: MM)

Degrees, honorifics, and titles

• 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

Latinisms

• 2000 (number) in Roman numerals
• The year 2000 in Roman numerals
• Mutatis mutandis ("m.m."), "with things changed that should be changed"

Transportation

• MM (New York City Subway service), a former New York City Subway service

Places

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

Science, technology, and mathematics

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

Other uses in science, technology, and mathematics

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