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.
Singles main-draw entrants
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
Champions
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].