A song by the band Cursive

The Big Bang is the scientific theory that the universe expanded rapidly from an enormously dense state some 14 billion years ago. Big Bang may also refer to:

'Big Bang' scenario, describes a way for adopting the new European currency - euro

The Big Bang Theory (sitcom), a CBS sitcom, first airing in fall 2007 (see above for disambiguation)

Big Bang Board Games, a software product by Freeverse Software distributed with some releases of Mac OS X

A song by the band Bad Religion

System 7 (Macintosh), a version of the Mac OS code named Big Bang

Big Bang (group), a Korean hip-hop group under YG Entertainment

Big Bang (Engines), an engine which fires on several cylinders at the same time, common in motorcycle racing

A song by the band Godley & Creme

The Big Bang (album), 2006 album by rap artist Busta Rhymes

Bigbang, a Norwegian rock band

Big Bang (album), 1995 album by rock band Waltari

The Big Bang (film), an animated science fiction film

Big-Bang Cannon, an early 20th Century American toy that's a safe alternative to fireworks

The Big Bang - The Essential Collection, 2003 album by the hard rock band TNT

Big Bang (book), a book by author Simon Singh on the Big Bang Phenomenon

The Big Bang (financial markets), the deregulation of many of the practices of the London Stock Exchange and the adoption of automated trading systems on 27 October 1986

The Big Bang (1989 film), a documentary by James Toback

The Big Bang (TV series), a children's science show broadcast on CITV

The Big Bang Theory (TV series), American sitcom (began 2007)

Big Bang Attack, the name of an energy based attack used by the character Vegeta in the Dragonball Z anime and manga series

A chi attack used by Fei Fong Wong from Xenogears.

Big Bang Theory (album), 2005 album by American rock group STYX