British Formula 3 International Series
| Category | Single seaters | 
|---|---|
| Country | United Kingdom | 
| Inaugural season | 1951 | 
| Folded | 2014 | 
| Drivers | 20 | 
| Teams | 6 | 
| Constructors | Dallara | 
| Engine suppliers | Mercedes HWA Volkswagen | 
| Tyre suppliers | Cooper Tires | 
| Last Drivers' champion | Martin Cao | 
| Official website | www | 
The British Formula Three Championship was an international motor racing series that took place primarily in the United Kingdom with a small number of events in mainland Europe. It was a junior-level feeder formula that used small single seater Formula Three chassis. Its final official title was the Cooper Tires British Formula 3 International Series. Notable former champions included Jackie Stewart, Emerson Fittipaldi, Nelson Piquet, Ayrton Senna, Mika Häkkinen, Rubens Barrichello, Takuma Sato, Daniel Ricciardo and Hélio Castroneves.