2017 Gwangju Open

The 2017 Gwangju Open was a professional tennis tournament played on hard courts. It was the 2nd edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Gwangju, South Korea between 18 and 24 September 2017.

Seeds

 * 1 Rankings as of 11 September 2017.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇰🇷 Hong Seong-chan
 * 🇰🇷 Kim Cheong-eui
 * 🇰🇷 Park Jun-sang
 * 🇰🇷 Sin Dong-hak

The following players received entry into the singles main draw using a protected ranking:
 * 🇺🇸 Bradley Klahn

The following players received entry from the qualifying draw:
 * 🇯🇵 Yuya Kibi
 * 🇦🇺 Marinko Matosevic
 * 🇯🇵 Makoto Ochi
 * Yang Tsung-hua

The following players received entry as lucky losers:
 * 🇮🇹 Lorenzo Frigerio
 * 🇯🇵 Kento Takeuchi

Singles

 * 🇩🇪 Matthias Bachinger def. Yang Tsung-hua 6–3, 6–4.

Doubles

 * Chen Ti / 🇯🇵 Ben McLachlan def. 🇦🇺 Jarryd Chaplin / 🇦🇺 Luke Saville 2–6, 7–6(7–1), [10–1].