BD

BD, Bd or bd may refer to:

In science and technology

• Bonner Durchmusterung, an important 19th Century star catalog
• Business day

In computing

• Baud (Bd), an information unit
• %BD, the Url Encoded version of the one half (½) symbol
• Blu-ray Disc, a high density blue laser optical disc format, or the successor of DVD
  • BD+, a component of the Blu-ray Disc Digital Rights Management system

In biology and medicine

• Batrachochytrium dendrobatidis, the fungus that causes the fatal amphibian disease Chytridiomycosis
• BD Butterfly, Callicore cynosura
• Bipolar disorder, a mood disorder
• "Bis die" (Latin for 'twice a day'), a medication needed to be taken twice in a day (also BID: "Bis in diem")

Arts and entertainment

• B. D. (Doonesbury), a major character in the Doonesbury comic strip
• Bande dessinée (or "bédé"), a French term for comics
• Bravely Default, a Japanese video game made by Square Enix as a Final Fantasy spinoff.
• Broder Daniel, a Swedish indie pop band
• Black Dynamite, a 2009 American spoof of blaxploitation films
• ВD, shorthand name for the Russian gaming magazine, Velikij Drakon, where the "В" character is actually the Russian letter "ve".

Places

• Bangladesh, where "BD" is the ISO 3166-1 2-letter country code
  • .bd, the country top-level domain for Bangladesh
• Bermuda, where "BD" is the FIPS PUB 10-4 territory code and obsolete NATO country code
• BD postcode area for Bradford, West Yorkshire, and the surrounding area
• Brunei Darussalam, where "BD" is the World Meteorological Organization country code

Businesses and organizations

• Becton Dickinson, an American manufacturer of medical supplies
• BD's Mongolian Barbeque, an American restaurant chain
• Bloor-Danforth, a subway line in Toronto, Canada
• BMI (airline), IATA airline designator for British Midland Airways
• Cambodia Bayon Airlines, IATA airline code
• Building Design, a British architectural magazine

Other uses

• Bachelor of Divinity, an academic degree
• Bondage (BDSM) and Discipline (BDSM), in sexual role-play
• Business Development, techniques aimed at attracting customers and penetrating markets
• Battle Dress, a British military uniform
• Bass Drum, in sheet music notation