2019 International Challenger Zhangjiagang – Doubles

Gong Maoxin and Zhang Ze were the defending champions but lost in the quarterfinals to Ruben Gonzales and Alex Lawson.

Max Purcell and Luke Saville won the title after defeating Sriram Balaji and Hans Hach Verdugo 6–2, 7–6(7–5) in the final.

Seeds
• # Hsieh Cheng-peng / Christopher Rungkat (semifinals)

• # 🇨🇳 Gong Maoxin / 🇨🇳 Zhang Ze (quarterfinals)

• # 🇦🇺 Max Purcell / 🇦🇺 Luke Saville (champions)

• # 🇮🇳 Sriram Balaji / 🇲🇽 Hans Hach Verdugo (final)