BM or bm may refer to:

Language

• Bahasa Melayu, the Malay language
• Bahasa Malaysia, the national language of Malaysia
• Bambara language (ISO 639 alpha-2 code) (bm)

Places

• Bermuda (ISO 3166-1 2-letter country code)
• British Museum in London (except in the natural sciences)
• Natural History Museum of London specimen code (in the natural sciences)
• Burma (FIPS Pub 10-4 code and obsolete NATO country code)

Organizations

• British Movement, a British fascist group
• Bayu Indonesia Air (IATA code)
• Bolinder-Munktell, a Swedish tractor and machinery manufacturer now part of Volvo
• Bolliger & Mabillard, a Swiss roller coaster manufacturer
• Boston and Maine Railroad
• British Midland, a British airline, now branded as bmi
• British Museum

 Health

• achelor of Medicine
• Body modification, the action of changing one’s body for aesthetic or functional reasons. (e.g. tattoos, scarification, piercings etc.)
• Boehringer Mannheim test, a test for blood sugar level
• Bone marrow
• Bowel movement
• Breast milk
• Bowel Movement
• Basement membrane

 Military

• Bandmaster, a warrant officer appointment in the British Army and Royal Marines
• Boatswain’s Mate (disambiguation), A U.S. Navy and U.S. Coast Guard rating.
• Bravery Medal (disambiguation), a military decoration awarded in several countries

Music

• BM (album), 2008 Barbara Morgenstern album
• BM, 2009 Billy Mahonie album
• B minor, a musical chord (Bm)
• Bachelor of Music
• Beautiful music, a radio format
• Bella Morte, a gothic rock band from Charlottesville, Virginia, USA
• Black metal, a form of Heavy metal music
• Bob Marley, Jamaican reggae singer
• Bret Michaels, the lead singer of the metal band, Poison.
• [break melody] break melody sound system from czech republic www.breakmelody.com

Computing and Entertainment

• .bm, the Internet country code top-level domain for Bermuda
• Black Mage, a character class in the Final Fantasy series
• Beast Master (usually in reference to a talent specification for a Hunter on World of Warcraft)
• Beatmania, a rhythm game from the Bemani series
• Blaster Master, a video game by Sunsoft
• Barbie Mariposa, film
• Barbie: Mermaidia, film
• Batman (comic book) and Batman (film), comic book superhero and character in/name of film
• Baby Mama (film), a 2008 comedy film
• Boyer–Moore string search algorithm
• bad manner, a common term used to describe poor sportsmanship in electronic sports, often abbreviated to „bm“

 Miscellaneous

• Baby mama, the popular street term for the mother of one’s illegitimate child
• Bar Mitzvah or Bat Mitzvah, terms for a Jewish child who is considered responsible for their actions, and the ceremony marking this point (usually 13 years of age)
• Benchmark (surveying), indicating reference points on maps
• Berlekamp-Massey algorithm, an algorithm to construct linear feedback shift registers
• Best man, the chief male assistant to the bridegroom at a wedding
• Bloody Mary (cocktail), popular cocktail containing vodka, tomato juice, and other spices or flavorings
• Brick and mortar, a physical business location
• Builder’s Measurement or Builder’s Old Measurement, a calculation of ship size used during the 18th and 19th centuries
• Burning Man, an annual event held in the Black Rock Desert of Nevada, USA
• Bursa Malaysia, Malaysia Exchange
• Business model