M , or m , is the thirteenth letter of the English alphabet. M may also refer to: Arts and entertainment Fictional characters M (Marvel Comics) , also known as Penance and Monet Yvette Clarisse Maria Therese St. Croix, a mutant associated with the X-Men M (James Bond) , the codename of the fictional Chief of the SIS (commonly known as "MI6") Minoru Kokubunji , also known as "M", from the manga and anime series Chobits Film and television M (1931 film) , a German film directed by Fritz Lang M (1951 film) , a remake of the previous, shifting the action from Berlin to Los Angeles M , a 2006 Japanese film directed by Ryūichi Hiroki M (2007 film) , made in South Korea M (2018 Finnish film) , a film directed by Anna Eriksson, loosely inspired by the last days of Marilyn Monroe M (2018 French film) , a documentary film directed by Yolande Zauberman about child abuse in Bnei Brak M, an obsolete film rating in the American Motion Picture Association of America film rating system M, films recommended for mature audiences in the Australian Office of Film and Literature Classification Manchete , a Brazilian television network from 1983 to 1999 MBC M , a South Korean television channel The Romans , a 1965 Doctor Who serial (production code M) M (comic strip) , a Norwegian comic strip M (John Cage book) , a 1973 book by avant garde composer John Cage M (Peter Robb book) , a 1998 book by Peter Robb about the Italian painter Caravaggio M (magazine) , a monthly teenage magazine published by Bauer Media Group M: Son of the Century , a 2018 historical novel by Antonio Scurati M (band) , a British techno-pop project of the artist Robin Scott Matthieu Chedid , French singer (stage name "-M-") Lee Min-woo , Korean singer (stage name "M") Mem Nahadr , American singer and performance artist (stage name "M") M (John Abercrombie Quartet album) , 1981 M (Myrkur album) , 2015 M (Big Bang single album) , 2015 "M" (Ayumi Hamasaki song) , 2000 "M" (Soccer Mommy song) , 2024 "M", a song by Chantal Kreviazuk from her album Colour Moving and Still "M", a song by The Cure from their 1980 album Seventeen Seconds "M", a song by Princess Princess from the 1989 album Diamonds "M's" (song) , 2015, by ASAP Rocky Other uses in music Measure (abbreviated "m.") or bar (music) , a segment of beats Mature, a rating used by the Entertainment Software Rating Board Brands and businesses M (fragrance) , a 2008 fragrance by Mariah Carey Macy's, Inc. (NYSE: M), an American department store chain Miracle Mart , a Canadian department store known simply as "M" from 1986 to 1992 M Resort , a hotel-casino in Las Vegas, Nevada, U.S. m , the International Phonetic Alphabet symbol for a voiced bilabial nasal sound М , a letter of the Cyrillic alphabet ' m , contraction of am , part of the English copular verb to be m, the masculine grammatical gender Mathematics, science, and technology Physical sciences Seismic magnitude scales , various scales of magnitude using variations of M Messier object , in astronomy M-theory , a proposed solution for problems in superstring theories Magnetic quantum number (symbol m ) Mass (symbol m ) Metal (placeholder symbol M) Molar mass , (symbol M ) Molality (symbol m ) Molar concentration , unit m Methionine , an alpha amino acid in biochemistry Electronics, telecommunications, and computing Computer programming M or Wolfram Language , the programming language underlying Mathematica

".m", a MATLAB or GNU Octave file ".m", a Mathematica package ".m", an implementation file in Objective-C M, the MUMPS programming language M-code or just M, MATLAB programming language Other uses in electronics, telecommunications, and computing M-series rangefinder, a series of Leica camera models M (videocassette format) , an obsolete recording format M band , radio frequencies from 60 to 100 GHz Android M , a code name for the Android Marshmallow operating system M (virtual assistant) , a former virtual assistant in Facebook Messenger Other uses in science, technology, and mathematics Slope of a line, commonly denoted m ATC code M Musculo-skeletal system , a section of the Anatomical Therapeutic Chemical Classification System Numbers and units of measurement 1000 (number) , Roman numeral M Million (abbr.) mega- , SI prefix M milli- , SI prefix m Metre , symbol m Minute , symbol m Toronto in Canada (postal code letter M) M postcode area , a group of several postcode districts in Greater Manchester, UK Madura ( vehicle registration prefix M) M., the regnal year abbreviation for Mary I of England following her marriage to Philip II of Spain Moderaterna , a Swedish political party Honório de Freitas Guimarães (1902–1968), member of the Brazilian Communist Party Religious literature M-Source , a hypothetical source document for the Gospel of Matthew 𝕸, the Masoretic Text , the authoritative Hebrew text of the Tanakh Rapid transit , sometimes called "metro", especially for underground systems, and abbreviated as "M" M (New York City Subway service) M (SEPTA Metro) M Ocean View , San Francisco, U.S. Tokyo Metro Marunouchi Line , Tokyo Metro Midōsuji Line , Osaka Metro Honshi–Bisan Line , West Japan Railway Company Other uses in transportation M, the prefix used for British motorways Mercedes-Benz M-Class BMW M , a subsidiary of car manufacturer BMW Farmall M , a tractor produced by International Harvester from 1939 to 1952 Infiniti M , a line of cars Mu (rocket family) , also known as M, a series of Japanese solid-fuelled carrier rockets Married , sometimes abbreviated m. Mike, the military time zone code for UTC+12:00 Monsieur (abbreviation "M.") Baby M , subject of a famous child custody battle M-ratio , a measure of the health of a player's chip stack in poker German gold mark , old German curreny, abbreviated M Azerbaijani manat , currency, abbreviated m. or man. \m/, a common way of typing corna or devil's horns M series (disambiguation) M Train (disambiguation) Mister M (disambiguation) MU (disambiguation) (mu; Ancient Greek: Μ / Greek: μ ) MM (disambiguation) Disambiguation pages Pages with plain IPA Articles containing Ancient Greek (to 1453)-language text Articles containing Greek-language text Short description is different from Wikidata All article disambiguation pages All disambiguation pages