Chase Koepka (born January 30, 1994) is an American professional golfer who plays for LIV Golf. He is the younger brother of Brooks Koepka, who is also a professional golfer. His great uncle is Major League Baseball player Dick Groat.
Koepka turned professional in the middle of 2016 and played on the Challenge Tour in the latter part of the year with little success. He played on the tour again in 2017 and had much more success. He finished in the top-10 on five occasions, including being runner-up in the Italian Challenge and the Kazakhstan Open, and finished the season 9th in the Order of Merit to earn a place on the European Tour for 2018. He teamed with his brother Brooks in the 2017 Zurich Classic of New Orleans, the pair finishing tied for 5th.