Matthew "Matt" Sates (born 28 July 2003) is a South African swimmer. For the 2021 FINA Swimming World Cup, Sates was the highest scoring male competitor from any country and earned a total of 18 medals including 13 gold medals. In addition to winning 18 medals, Sates set multiple world junior records over the course of the month-long World Cup. He competed at the 2020 Summer Olympics in two individual events, placing highest in the 200 metre individual medley at 14th as well as placing 32nd in the 100 metre butterfly. He won the NCAA title in the 500 yard freestyle at the 2022 NCAA Championships.