Bad or BAD may refer to:

Common meanings

*Evil, the opposite of moral good *Error, Erroneous, inaccurate or incorrect *Unhealthy, or counter to well-being *Antagonist, the threat or obstacle of moral good

Acronyms

* BAD-2, a Soviet armored trolley car * Bank account debits tax, an Australian tax * Bcl-2-associated death promoter, a pro-apoptotic protein * Team B.A.D., a professional wrestling tag team

Films

* ''Andy Warhol's Bad'', a 1977 film * ''Bad'', an unfinished film by Theo van Gogh (film director), Theo van Gogh

Music

Performers

* B.A.D, B. A. D., the Taiwanese boy band, who formed in 1998 * Big Audio Dynamite, Mick Jones' post-Clash band, from London * Royce da 5'9", the American rapper known as Bad, in the group Bad Meets Evil

Albums

* Bad (album), ''Bad'' (album), a 1987 album by Michael Jackson * ''BAD'', or ''Bigger and Deffer'', the second album by LL Cool J, 1987

Songs

* Bad (U2 song), "Bad" (U2 song), 1984 * Bad (Michael Jackson song), "Bad" (Michael Jackson song), 1987 * "Bad", from the 2011 album ''Symphony Soldier'' by The Cab * Bad (Wale song), "Bad" (Wale song), 2013 * Bad (David Guetta and Showtek song), "Bad" (David Guetta and Showtek song), 2014 * Bad! (XXXTentacion song), "Bad!" (XXXTentacion song), 2018 * Bad (James Bay song), "Bad" (James Bay song), 2019 * "Bad", by Don Diablo, featuring Zak Abel, 2020

Other music

* Bad (tour), a Michael Jackson world tour

Places

* "Bad" is the German word for "bath/spa" and so is found in many placenames in German-speaking Europe, e.g. Bad Kissingen * Bad, Azerbaijan, a village in the Quba District * Bad, a village in the Agra district of India * Bad, Uttar Pradesh, a census town in India * Badrud, Bād, alternate name for Badrud, a city in Iran * Bad River (disambiguation), various rivers

Other uses

* Bad (economics), the opposite of a good * Bad (cuneiform), a cuneiform sign * Little Miss Bad, a character in the ''Little Miss'' series of books by Roger Hargreaves * Banda languages, spoken in Central Africa (ISO 639-2 and -5 codes "bad") * Barksdale Air Force Base, Bossier City, Louisiana, US (IATA airport code BAD)