Sir John Young Jackie Stewart, (born 11 June 1939) is a British former Formula One racing driver from Scotland.
Nicknamed the Flying Scot, he competed in Formula One between 1965 and 1973, winning three World Drivers Championships, and twice finishing as runner-up over those nine seasons.
Outside of Formula One, he narrowly missed out on a win at his first attempt at the Indianapolis 500 in 1966, and competed in the Can-Am series in 1970 and 1971. Between 1997 and 1999, in partnership with his son, Paul, he was team principal of the Stewart Grand Prix Formula One racing team.
Stewart was also instrumental in improving the safety of motor racing, campaigning for better medical facilities and track improvements at motor racing circuits.