Lucas Yan Cabral Azeredo Chianca (born 25 August 1995) better known as Lucas Chumbo, is a Brazilian professional surfer.

[1] In February 2018 he won the Nazare Challenge in the Men's Big Wave category with the better score of the championship's history.

[2][3] In the same year, he received the 2018 Biliabong XXL in the category of best male performance.

In January 2020 he participated in the reality show Big Brother Brasil 20, as a celebrity, being the first evicted of the program (20th place) with 75,54% of votes against Bianca Andrade (24,46%).

[4][5] In February 2020 he and Kai Lenny won the Nazaré Tow Surfing Challenge as partners in the Men's Big Wave category, at Praia do Norte (Nazaré), in Portugal.