The war on drugs is a global campaign led by the United States government against the illegal drug trade.
War on Drugs may also refer to:
- Bangladesh drug war, an ongoing campaign against the illegal drug trade by the Bangladeshi government
- Colombian conflict, a low-intensity asymmetric war in Colombia which began in 1964
- Mexican drug war, an asymmetric conflict between the Mexican government and drug cartels since 2006
- Miami drug war, a series of armed conflicts between the United States government and drug cartels in Florida during the 1970s and 1980s
- Philippine drug war, an intensified anti-drug campaign by the Filipino government beginning in 2016