William Dunn, Jr. (c. 1864 – August 1952)[1] was an English professional golfer and golf course designer of Scottish descent.

from 1886 to 1888 before traveling to Biarritz, France, where he instructed wealthy patrons on the fine art of swinging a golf club.

Golf was beginning to gain in popularity at this time and Dunn found ripe pickings in golf-related work and settled in the U.S.

The clubs the Dunns produced provided an interesting mix of traditional Scottish values and modern ingenuity.

Some of these irons bear a small eagle mark, a reference to his new home and were possibly forged by Robert Condie.

Horace Rawlins won the inaugural U.S. Open title, two strokes ahead of runner-up Willie Dunn.

Dunn tied for third place in the 1897 U.S. Open, held 17 September at Chicago Golf Club in Wheaton, Illinois.

Dunn fired rounds of 85-87-87-85=344 and placed seventh in the 1898 U.S. Open, held at Myopia Hunt Club in South Hamilton, Massachusetts on 17–18 June 1898.