An Byeong-hun (; born 17 September 1991), also known as Byeong-Hun An or Ben An, is a South Korean professional golfer. In August 2009, he became the youngest-ever winner of the U.S. Amateur.
An moved to the United States in December 2005 to attend the IMG Academies in Bradenton, Florida, where he was also known as Ben An.
At the 2010 U.S. Amateur, An became the first defending champion to advance to the semifinals since Tiger Woods in 1996. After An took a 3-up lead after nine holes in his semifinal match, his opponent David Chung rallied to defeat An 1-up.
In June 2013, An had his best finish to date on the Challenge Tour, tied for second place at the Scottish Hydro Challenge. In August 2014, he won his first Challenge Tour event at the Rolex Trophy, making An the first Korean to win on the Challenge Tour. He finished 2014 in third place in the Challenge Tour Rankings, and moved up to the European Tour.
In May 2015, he won the BMW PGA Championship at Wentworth. He was only the second player to win both the U.S. Amateur and the British PGA Championship, after Arnold Palmer.
In 2016, An played the Zurich Classic of New Orleans on an exemption, and lost a playoff at the first hole. In 2016, he earned enough money as a non-member to gain a PGA Tour card for 2016–17.
In December 2019, An played on the International team at the 2019 Presidents Cup at Royal Melbourne Golf Club in Australia. The U.S. team won 16–14. An went 1–2–2 and lost his Sunday singles match against Webb Simpson.
An has been suspended from the PGA Tour for three months in 2023 (August 31 – December 1) for violating the tour's anti-doping policy. He tested positive for a substance banned by the World Anti-Doping Agency that was included in an over-the-counter cough medicine in South Korea.
| Flagship events (1) |
| Other European Tour (1) |
| 1 | 24 May 2015 | BMW PGA Championship | 71-64-67-65=267 | −21 | 6 strokes | Thongchai Jaidee, Miguel Ángel Jiménez |
| 2 | 27 Oct 2024 | Genesis Championship1 | 67-66-71-67=271 | −17 | Playoff | Tom Kim |
European Tour playoff record (1–0)
| 1 | 2024 | Genesis Championship | Tom Kim | Won with birdie on first extra hole |
| 1 | 20 Feb 2022 | LECOM Suncoast Classic | 65-66-67-69=267 | −17 | 1 stroke | M. J. Daffue, Ben Griffin, Scott Harrington, Kim Seong-hyeon |
| 1 | 24 Aug 2014 | Rolex Trophy | 63-69-73-64=269 | −19 | 3 strokes | Benjamin Hébert |
| 1 | 20 Sep 2015 | Shinhan Donghae Open | 66-73-66-67=272 | −12 | 1 stroke | Noh Seung-yul |
| 2 | 27 Oct 2024 | Genesis Championship1 | 67-66-71-67=271 | −17 | Playoff | Tom Kim |
Korean Tour playoff record (1–0)
| 1 | 2024 | Genesis Championship | Tom Kim | Won with birdie on first extra hole |
| 1 | 2016 | Zurich Classic of New Orleans | Jamie Lovemark, Brian Stuard | Stuard won with birdie on second extra hole An eliminated by par on first hole |
| 2 | 2018 | Memorial Tournament | Bryson DeChambeau, Kyle Stanley | DeChambeau won with birdie on second extra hole Stanley eliminated by par on first hole |
| 3 | 2024 | Sony Open in Hawaii | Keegan Bradley, Grayson Murray | Murray won with birdie on first extra hole |
European Tour playoff record (1–0)
| 1 | 2024 | Genesis Championship | Tom Kim | Won with birdie on first extra hole |
| Masters Tournament | CUT | CUT | T33 | ||||||
| U.S. Open | CUT | CUT | T23 | CUT | 67 | ||||
| The Open Championship | CUT | T26 | CUT | T59 | CUT | T51 | |||
| PGA Championship | CUT | CUT | T28 | T56 |
| Masters Tournament | CUT | T16 | T21 | ||||
| PGA Championship | CUT | T22 | T49 | T43 | 74 | ||
| U.S. Open | T16 | CUT | CUT | CUT | |||
| The Open Championship | T32 | NT | T26 | T23 | T13 | CUT |
CUT = missed the half-way cut
"T" indicates a tie for a place
NT = no tournament due to COVID-19 pandemic
| 3 |
| 6 |
| 3 |
| 7 |
| The Players Championship | CUT | T30 | T26 | C | CUT | T35 | CUT | T52 |
CUT = missed the halfway cut
"T" indicates a tie for a place
C = Cancelled after the first round due to the COVID-19 pandemic
| WGC-Championship | T52 | T48 | T45 | T29 | ||
| WGC-Match Play | T9 | T58 | T40 | NT1 | ||
| WGC-Invitational | T57 | T49 | T57 | T12 | ||
| Champions | T19 | T63 | T41 | T14 | NT1 |
QF, R16, R32, R64 = Round in which player lost in match play
NT = No tournament
"T" = Tied
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