British American Tobacco
- Country: United Kingdom
- Type: Commercial
- Website: www.bat.com
- Update: 05-02
British American Tobacco plc (British American Tobacco plc, referred to as BAT) is one of the world's largest tobacco companies, founded in 1902, headquartered in London, for the London Stock Exchange listed company (LSE: BATS), whose brands include 555, Dunhill and so on.