Defending champion Marcelo Melo and his partner João Fonseca defeated Constantin Frantzen and Robin Haase in the final, 4–6, 6–3, [10–8] to win the doubles tennis title at the 2026 Rio Open. It was the first ATP Tour doubles title for Fonseca and 41st for Melo.
Rafael Matos and Melo were the reigning champions, but chose not to compete together. Matos partnered Orlando Luz, but lost in the first round to Guido Andreozzi and Manuel Guinard.
Seeds
Draw
Draw
Qualifying Seeds
Qualifiers Gonzalo Escobar / Jean-Julien Rojer
Lucky losers Gustavo Heide / Luís Guto Miguel
Qualifying draw
References
External links Main draw Qualifying draw