João Vítor de Azeredo Chianca (Saquarema, August 30, 2000), sometimes known as Chumbinho, is a Brazilian professional surfer in the World Surf League (WSL).

The younger brother of Lucas Chumbo and the son of Gustavo Chumbão, he made his debut in the main surfing competition in 2022.

[4][5][6] After debuting in the World Surfing Elite in 2022, Chianca was unable to maintain himself after the mid-season cut.

With a strong start to the season he had two 3rd places in the first two events and his first CT victory in the MEO Rip Curl Pro Portugal event beating Jack Robinson in the final.

[9] At the end of the season he achieved his first classification at the WSL Finals, beating Jack Robinson in the first heat and losing to Ethan Ewing shortly thereafter, finishing in fourth place, his best in the CT.