2021 Tennis Napoli Cup – Doubles

Gero Kretschmer and Alexander Satschko were the defending champions but chose not to defend their title.

Dustin Brown and Andrea Vavassori won the title after defeating Mirza Bašić and Nino Serdarušić 7–5, 7–6(7–5) in the final.

Seeds
• # 🇩🇪 Dustin Brown / 🇮🇹 Andrea Vavassori (champions)

• # 🇫🇷 Sadio Doumbia / 🇫🇷 Fabien Reboul (quarterfinals)

• # 🇺🇸 James Cerretani / 🇩🇪 Fabian Fallert (quarterfinals)

• # 🇩🇪 Yannick Hanfmann / Luca Margaroli (quarterfinals)