2019 Shanghai Challenger – Singles

Blaž Kavčič was the defending champion but chose not to defend his title.

Yasutaka Uchiyama won the title after defeating Wu Di 6–4, 7–6(7–4) in the final.

Seeds
All seeds receive a bye into the second round. • # 🇮🇳 Prajnesh Gunneswaran (semifinals)

• # 🇯🇵 Tatsuma Ito (third round)

• # 🇯🇵 Yūichi Sugita (semifinals)

• # 🇯🇵 Yasutaka Uchiyama (champion)

• # 🇦🇺 Marc Polmans (second round)

• # 🇨🇦 Steven Diez (third round)

• # 🇦🇺 Andrew Harris (quarterfinals, retired)

• # 🇯🇵 Hiroki Moriya (quarterfinals)

• # 🇪🇸 Enrique López Pérez (quarterfinals)

• # 🇦🇺 Max Purcell (third round)

• # 🇪🇸 Roberto Ortega Olmedo (third round)

• # 🇦🇺 Akira Santillan (third round, retired)

• # 🇮🇳 Saketh Myneni (second round)

• # 🇦🇺 Aleksandar Vukic (second round)

• # 🇯🇵 Kaichi Uchida (third round)

• # Gonçalo Oliveira (third round)