"Accidents Will Happen" is a song written by Elvis Costello and performed by Elvis Costello and the Attractions. It first appeared on the 1979 album Armed Forces, which he recorded with The Attractions. The song was written about an encounter Costello had with a taxi driver in Tucson, Arizona and originally featured a piano-centered arrangement.

The song was a moderate hit in the UK when released as the second single from Armed Forces, reaching the Top 30 in the UK. It was accompanied by an animated music video that has since received acclaim. The song has been praised by critics and has appeared on numerous compilation and live albums.