| 2023 Gwangju Open | |
|---|---|
| Date | 1–7 May |
| Edition | 6th |
| Surface | Hard |
| Location | Gwangju, South Korea |
| Champions | |
| Singles | |
 Jordan Thompson | |
| Doubles | |
 Evan King / Reese Stalder | |
The 2023 Gwangju Open was a professional tennis tournament played on hard courts. It was the 6th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Gwangju, South Korea between 1 and 7 May 2023.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| AUS | Max Purcell | 89 | 1 |
| USA | Christopher Eubanks | 90 | 2 |
| AUS | Jordan Thompson | 91 | 3 |
| AUS | James Duckworth | 102 | 4 |
 ECU | Emilio Gómez | 115 | 5 |
| AUS | Rinky Hijikata | 141 | 6 |
| AUS | Aleksandar Vukic | 142 | 7 |
| USA | Denis Kudla | 146 | 8 |
The following players received wildcards into the singles main draw:
Chung Yun-seong Park Ui-sung Shin San-huiThe following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
Peter Gojowczyk Omar Jasika 
Jason Jung Daniel Masur 
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