| 2019 Seoul Open Challenger | |
|---|---|
| Date | 29 April – 5 May |
| Edition | 5th |
| Surface | Hard |
| Location | Seoul, South Korea |
| Champions | |
| Singles | |
 Kwon Soon-woo | |
| Doubles | |
 Max Purcell / Luke Saville | |
The 2019 Seoul Open Challenger was a professional tennis tournament played on outdoor hard courts. It was the fifth edition of the tournament. It was part of the 2019 ATP Challenger Tour. It took place in Seoul, South Korea, between 29 April and 5 May 2019.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| AUS | |||
 LTU | Ričardas Berankis | 100 | 2 |
 UKR | Sergiy Stakhovsky | 115 | 3 |
 CAN | Brayden Schnur | 116 | 4 |
 SVK | Lukáš Lacko | 125 | 5 |
 TPE | Jason Jung | 134 | 6 |
 CYP | Marcos Baghdatis | 137 | 7 |
 RUS | Evgeny Donskoy | 138 | 8 |
| AUS | Alex Bolt | 140 | 9 |
 IND | Ramkumar Ramanathan | 151 | 10 |
| KOR | Kwon Soon-woo | 152 | 11 |
 JPN | Tatsuma Ito | 153 | 12 |
 SRB | Nikola Milojević | 156 | 13 |
 BEL | Ruben Bemelmans | 166 | 14 |
| JPN | Hiroki Moriya | 184 | 15 |
| JPN | Yūichi Sugita | 185 | 16 |
The following players received wildcards into the singles main draw:
Chung Hong Hong Seong-chan Kim Dong-ju Lee Jea-moon Shin San-huiThe following players received entry into the singles main draw using their ITF World Tennis Ranking:
Bai Yan 
Moez Echargui 
Youssef Hossam Shintaro Imai Rio Noguchi The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
Jacob Grills Nam Ji-sung The following player received entry as a lucky loser:
Xia Zihao Kwon Soon-woo def. Max Purcell 7–5, 7–5. Max Purcell / Luke Saville def. Ruben Bemelmans / Sergiy Stakhovsky 6–4, 7–6(9–7).The 2016 Gimcheon Open ATP Challenger is a professional tennis tournament played on hard courts. It is the third edition of the tournament which is part of the 2016 ATP Challenger Tour. It takes place in Gimcheon, Korea between 18 and 24 July 2016.
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