In music:

• The Clash, an English punk rock band
• The Clash (album), The Clash's first album
• Clash (magazine), a British music magazine
• Clash cymbals, a musical instrument
• Clash Records, Dutch reggae and breakcore music producer
• Sound clash, a battle between two bands
• Clash (band), a Thai rock band

In video games:

• Attribute clash, a graphics artifact that afflicts older technology
• Battle Clash, a Super Nintendo game
• Mario Clash, a Nintendo game

Clash may also refer to:

• Clash of Civilizations, a controversial sociological theory advocated by Samuel P. Huntington
• Kevin Clash, puppeteer who performs the muppet Elmo
• Clash!, a 1990 game show
• Clash of the Champions, a National Wrestling Alliance and World Championship Wrestling event