James Oh (born April 5, 1982) is an American professional golfer.

[2] Oh and Phil Mickelson are the only multiple winners of the Rolex Tournament of Champions in American Junior Golf Association history.

Oh played college golf at the University of Nevada, Las Vegas for one year before turning professional in 2001.

[3] In 2003, Oh Monday-qualified and went on to win the Mark Christopher Charity Classic on the Nationwide Tour.

At age 21 years, 5 months and 27 days, he became the youngest winner on the Nationwide Tour.