2019 Seoul Open Challenger

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.

Seeds

 * 1 Rankings as of 22 April 2019.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇰🇷 Chung Hong
 * 🇰🇷 Hong Seong-chan
 * 🇰🇷 Kim Dong-ju
 * 🇰🇷 Lee Jea-moon
 * 🇰🇷 Shin San-hui

The 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:
 * 🇮🇳 Sriram Balaji

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

Singles

 * 🇰🇷 Kwon Soon-woo def. 🇦🇺 Max Purcell 7–5, 7–5.

Doubles

 * 🇦🇺 Max Purcell / 🇦🇺 Luke Saville def. 🇧🇪 Ruben Bemelmans / 🇺🇦 Sergiy Stakhovsky 6–4, 7–6(9–7).