The 1909 Open Championship was the 49th Open Championship, held 10–11 June at Royal Cinque Ports Golf Club in Deal, Kent, England. J.H. Taylor won the Championship for the fourth time, six strokes ahead of runners-up Tom Ball and James Braid. Royal Cinque Ports had been added as the sixth course on the Open rota at a meeting in November 1907 at which meeting it was decided to hold the 1909 Open there. The meeting also agreed that the Championship was to be played in England and Scotland alternately.
Qualifying took place on 8–9 June. The 204 players were divided into two "sections". Those in the first section played on the first morning and second afternoon while those in the second section played on the first afternoon and second morning. After the 36 holes the leading 30 players and ties qualified from each section with the additional provision that each section had to contain at least 30 professionals. 69 players qualified including 6 amateurs.
Charles Johns was the leader with a score of 72 after the first round, with J. Piper second on 73 and Taylor and Ball a further stroke behind. Taylor had the best score in the afternoon and led after the first day on 147, a stroke ahead of Johns, with Ball back on 149 and Sandy Herd on 151. Piper faded badly with an 85.
On the second morning, Taylor scored 74, only bettered by a 73 by Braid. Taylor's lead over Ball was extended to four with Braid and Johns a further two behind. In the afternoon, Taylor had another steady round of 74 for a total of 295. After eight holes, Ball was two better than Taylor at the same point but he eventually finished six shots behind Taylor on 301, tied with Braid with Johns a further stroke behind.