2021 Campeonato Internacional de Tênis de Campinas – Doubles

Sadio Doumbia and Fabien Reboul were the defending champions but chose not to defend their title.

Rafael Matos and Felipe Meligeni Alves won the title after defeating Gilbert Klier Júnior and Matheus Pucinelli de Almeida 6–3, 6–1 in the final.

Seeds
• # 🇧🇷 Rafael Matos / 🇧🇷 Felipe Meligeni Alves (champions)

• # 🇧🇷 Orlando Luz / 🇻🇪 Luis David Martínez (first round)

• # Mark Vervoort / 🇧🇴 Federico Zeballos (quarterfinals)

• # 🇦🇷 Pedro Cachin / 🇦🇷 Facundo Mena (first round)