William Auchterlonie

William "Willie" Auchterlonie (1872-1963) was a Scottish golfer. He was a native of the "Home of Golf" St. Andrews. He won the 1893 Open Championship, at the age of 21 years and 24 days and he remains the second youngest Open Champion after Tom Morris, Jnr, but it was to prove to be his only Open. His brother, Laurie Auchterlonie, won the 1902 U.S. Open.

Auchterlonie was honorary professional to the Royal and Ancient Golf Club of St Andrews for nearly a quarter of a century. He had began his working life as an apprentice to a clubmaker and he ran clubmaking business for most of his adult life. There is still a golf shop called Aucterlonie's in St Andrews. He was involved in golf course design.