Bruno Giuseppe Fratus (born 30 June 1989) is a Brazilian competitive swimmer. He won a bronze medal in the 50-metre freestyle at the 2020 Summer Olympics in Tokyo. In July 2021, Fratus became the first swimmer in history to swim the long course 50 metre freestyle race in less than 22 seconds 90 times. In the 50 metre freestyle, he won 3 medals in a row at the World Championships in 2015, 2017 and 2019 (2 silver and 1 bronze), in addition to having won silver in the 4 x 100 metre freestyle relay in 2017. He is also the gold medalist in the 50 metre freestyle at the 2014 Pan Pacific Championships and at the 2019 Pan American Games.