The 2025 Gwangju Open was a professional tennis tournament played on hardcourts. It was the 8th edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Gwangju, South Korea between 21 and 27 April 2025.

Singles main-draw entrants Seeds Country Player Rank1 SeedAdam Walton861Christopher Eubanks1102Brandon Holt1163Tristan Schoolkate1204Li Tu1725James Trotter1766Térence Atmane1777James McCabe1818 1 Rankings as of 14 April 2025.

Other entrants The following players received wildcards into the singles main draw: Chung Hyeon Chung Yun-seong Kwon Soon-woo

The following player received entry into the singles main draw using a protected ranking: Jason Kubler

The following players received entry from the qualifying draw: Hsu Yu-hsiou Rio Noguchi Park Ui-sung Marat Sharipov Ilia Simakin Kaichi Uchida

The following player received entry as a lucky loser: Viktor Durasovic

Champions Singles

Jason Kubler def. Alibek Kachmazov 7–5, 6–7(7–9), 6–3.

Doubles

Ray Ho / Matthew Romios def. Vasil Kirkov / Bart Stevens 6–3, 7–6(8–6).

References