KAOS or Kaos may refer to:

• Kaos (TV series), stylised as KAOS, a mythological dark comedy created by Charlie Covell for Netflix in 2024
• Kaos (film), a 1984 Italian film by Paolo and Vittorio Taviani
• The Ancient One (Ronin Warriors) or Kaos, a character from Ronin Warriors
• KAOS (Get Smart), a fictional criminal spy agency in Get Smart
• Kaos, a character from Battle Angel Alita
• Kaos, pen name of a character in the manga series Comic Girls

• Kaos One (born 1971), Italian rapper
• Kaos of Iberia, an ancient king of Causasian Iberia
• Kenny Kaos or Kaos (born 1970), American professional wrestler
• Wych Kaosayananda or Kaos (born 1974), Thai film director
• Kaos (drag queen), Canadian drag queen

• Kaos Studios, a defunct video game developer
• KAOS, a character in Donkey Kong Country 3: Dixie Kong's Double Trouble!
• KAOS, a fictional computer from Red Alarm
• Kaos, the main antagonist character from the Skylanders video game series

• KAOS (FM), a radio station in Olympia, Washington, United States
• KAOS FM NZ, radio station in Blenheim, Marlborough, New Zealand
• Kaos (Bo Kaspers Orkester album), 2001
• Kaos (Anita Tijoux album), 2007
• Kaos (DJ Muggs and Roc Marciano album), 2018
• Grupo KAOS, a Puerto Rican merengue music group

• KAoS, a policy services framework
• KAOS (software development), a goal modeling method
• KaOS, Linux distribution

• Kaos Worldwide, a maker of technical clothing systems
• Assassin (game) or KAOS (Killing as organized sport), a live-action game

• k-os (born 1972)
• Radio KAOS (disambiguation)
• Chaos (disambiguation)