Duncan McCulloch (1893–1968) was one of the leading Scottish-based professional golfers of the inter-war period.

[1] McCulloch was an assistant to George Duncan at Hanger Hill Golf Club, London for three years before World War I.

[2] In the 1923 Scottish Professional Championship, he had led after the first day and finished tied for third place.

[3][4] McCulloch was appointed the professional at Troon Golf Club in 1924 on the retirement of Willie Fernie.

[5] McCulloch won the Scottish Professional Championship in 1929 and 1930.