David "Deacon" Brown (9 May 1861 – 8 July 1936) was a Scottish professional golfer who played in the late 19th and early 20th century.

John Anderson, who was secretary of the Musselburgh Club at the time, invited him to play and provided him with a pair of striped trousers, a frock coat and a lum hat to wear.

Brown was hired by Hayling Island Golfing Club (now Hayling Golf Club) in early 1885 as greenkeeper following the departure of Joseph Lloyd as Professional/Greenkeeper where The Field reported in an April report of the Spring Meeting of that year that 'great satisfaction was expressed at the improvement made in the state of the green since the charge of it was undertaken by David Brown of Musselburgh'.

In 1903 he tied with Willie Anderson for first place in the U.S. Open after 72 holes, but he lost the playoff.

Brown enjoyed playing the stock market but lost most of his wealth during the Wall Street crash of 1929 and returned to Musselburgh, where he died in 1936.