William Fernie (7 May 1855 – 24 June 1924) was a Scottish professional golfer and golf course architect from St Andrews. He won the 1883 Open Championship at Musselburgh Links. The tournament was scheduled to last four rounds of the nine-hole course on a Friday in November. Fernie tied with defending champion Bob Ferguson, with both men shooting 158. The following day Fernie won a playoff by a single stroke.