M (disambiguation)

Look up M or m in Wiktionary, the free dictionary.

M, or m, is the thirteenth letter of the English alphabet.

M may also refer to:

Companies and products

M (videocassette format), an obsolete recording format
M-theory, a proposed solution for problems in superstring theories
M band, radio frequencies from 60 to 100 GHz
Mass (symbol m)
Magnetic quantum number (symbol m)
Messier object, in astronomy
Metal (placeholder symbol M)
Methionine, an alpha amino acid in biochemistry
Molality (symbol m)
Molar concentration, unit m
Molar mass, (symbol M)
ATC code M Musculo-skeletal system, a section of the Anatomical Therapeutic Chemical Classification System
Seismic magnitude scales, various scales of magnitude using variations of M
Slope, represented by variable m in a linear equation

Mu (rocket family), also known as M, a series of Japanese solid-fuelled carrier rockets
Rapid transit, sometimes called "Metro" and shortened to an M.
M, the prefix used for British motorways

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
M, the production code for the 1965 Doctor Who serial The Romans
Manchete, a Brazilian television network
M. Son of the Century (miniseries), a 2024 television adaptation of M: Son of the Century

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, short for mature, a rating used by the Entertainment Software Rating Board to denote that a video game contains mature content

M Resort, a hotel-casino in Las Vegas, Nevada, U.S.
M-Source, a hypothetical source document for the Gospel of Matthew
Moderaterna, a Swedish political party
Baby M, subject of a famous child custody battle
m, the International Phonetic Alphabet symbol for a voiced bilabial nasal sound
М, a letter of the Cyrillic alphabet
M-ratio, a measure of the health of a player's chip stack in poker
\m/, a common way of typing corna or devil's horns
'm, contraction of am, part of the English copular verb to be
M, the symbol for the old German currency German gold mark
m, the masculine grammatical gender
m or M, the male gender
M., the abbreviation for Monsieur
M., the regnal year abbreviation for Mary I of England following her marriage to Philip II of Spain
m., married
m. or man., an abbreviation for the Azerbaijani manat (currency)
𝕸, the Masoretic Text, the authoritative Hebrew text of the Tanakh
Mike, the military time zone code for UTC+12:00
Honório de Freitas Guimarães (1902–1968), member of the Brazilian Communist Party