Chemical warfare is the use of chemical substances in warfare.
Chemical Warfare may also refer to: Chemical Warfare (The Alchemist album), 2009 Chemical Warfare (Escape the Fate album), 2021 "Chemical Warfare", a song by Dead Kennedys from the 1980 album Fresh Fruit for Rotting Vegetables "Chemical Warfare", a song by thrash metal band Slayer from the 1984 EP Haunting the Chapel