William Bruce Gordon Johnstone (30 January 1937 – 3 March 2022) was a South African racing driver whose brief spell at Formula One’s highest level came during the sport’s famously unforgiving early 1960s era. He made a single F1 World Championship Grand Prix appearance, racing on 29 December 1962. Although he left without scoring a championship point, Johnstone had already shown his pace elsewhere in Formula One machinery.
Earlier in 1962, he contested the non-championship Oulton Park Gold Cup, delivering an impressive fourth-place finish. Johnstone was also a competitor in the South African Formula One Championship, part of a thriving domestic racing scene that produced several drivers capable of mixing it with international opposition.