Manoel Messias

 Manoel Messias Dos Santos Júnior (born 19 November 1996) is a Brazilian triathlete. He won the silver medal in the men's triathlon at the 2019 Pan American Games. He also won the gold medal in the mixed relay event together with Luisa Baptista, Vittória Lopes and Kaue Willy.

In 2021, he competed in the men's triathlon at the 2020 Summer Olympics held in Tokyo, Japan.