João Vítor de Azeredo Chianca, also known as "Chumbinho" is a Brazilian professional surfer who performs on the WSL Championship Tour (WCT). Lucas Chumbo's younger brother and son of Gustavo Chumbão had his debut in the main surfing competition in 2022. In the 2023 season, he was a semifinalist in the first two competitions of the season in Hawaii and won his first title in the stage of Portugal in Peniche, on the beach of Supertubos.