Olin Dutra (January 17, 1901 – May 5, 1983) was an American professional golfer who played on the PGA Tour in the 1920s and 1930s.
Dutra was born in Monterey, California. At age nine, he was introduced to golf as a caddie on the course in Del Monte, California. In 1924, he resigned from a job at his father's hardware store and joined the PGA Tour, where he would win 10 tournaments. His best years as a golf professional were in the early 1930s; he won the 1932 PGA Championship, the 1934 U.S. Open at Merion and played in the 1933 and 1935 Ryder Cup matches. In the 1932 PGA Championship, Dutra played 196 holes and finished an astounding 19-under-par, including finishing as low qualifier and winning his matches 9 & 8, 5 & 3, 5 & 4, 3 & 2, and 4 & 3.
The 1934 U.S. Open is the tournament for which Dutra is best remembered. While traveling to Philadelphia, where the tournament was to take place, Dutra became ill and lost 15 pounds. After the first two rounds, he was eight strokes behind the leaders and in 18th place. On the eve of the 36-hole final day, Dutra had an attack of dysentery, forcing him to snack on sugar cubes throughout the day. He was still able to shoot a 71-72, holding off Gene Sarazen to win by a single stroke.
Dutra died in Newman, California at the age of 82.