2019 ATP Challenger China International – Nanchang – Singles

Quentin Halys was the defending champion but chose not to defend his title.

Andrej Martin won the title after defeating Jordan Thompson 6–4, 1–6, 6–3 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇦🇺 Jordan Thompson (final)

• # 🇮🇳 Prajnesh Gunneswaran (withdrew)

• # 🇦🇺 Alex Bolt (second round)

• # 🇮🇳 Ramkumar Ramanathan (semifinals)

• # 🇦🇺 James Duckworth (third round)

• # 🇦🇺 Jason Kubler (second round)

• # 🇷🇸 Nikola Milojević (semifinals)

• # 🇪🇸 Enrique López Pérez (third round)

• # 🇰🇿 Aleksandr Nedovyesov (second round)

• # 🇫🇷 Maxime Janvier (second round, retired)

• # 🇯🇵 Go Soeda (quarterfinals)

• # 🇬🇧 Jay Clarke (third round)

• # 🇨🇿 Adam Pavlásek (third round)

• # 🇰🇷 Lee Duck-hee (second round)

• # 🇧🇾 Uladzimir Ignatik (second round)

• # 🇯🇵 Kaichi Uchida (third round)