Han Seung-su (born September 10, 1986), commonly known as Seungsu Han, is a Korean-American professional golfer who plays on the Asian Tour and the Korean Tour.

He has also played on the Japan Golf Tour, winning the 2017 Casio World Open.

He attended IMG Academy and was the first and only player to win all 5 AJGA Majors in one year during 2002.

[2] Han turned professional after earning a place on the 2009 Nationwide Tour.

His best season on the tour was 2017 when he won the Casio World Open, was runner-up twice and third a further three times.