James Hahn (born November 2, 1981) is an American professional golfer who plays on the PGA Tour.

On June 4, 2012, he picked up his first win on Tour in 2012 at the Rex Hospital Open after defeating Scott Parel in a playoff – going for the green in two on the decisive par 5 because he had a flight to catch.

[3] In February 2015, Hahn won for the first time on the PGA Tour at the Northern Trust Open played at Riviera Country Club.

He beat Paul Casey and Dustin Johnson in a sudden-death playoff after all three players finished in a tie at six-under-par after regulation play.

In May 2016, after missing the cut in his eight previous starts, Hahn won for the second time on the PGA Tour at the Wells Fargo Championship after beating Roberto Castro in a play-off.