Clyde Lewis (born 25 September 1997) is an Australian competitive swimmer. Lewis won the gold medal in the 400 metre individual medley at the 2018 Commonwealth Games. He also won the gold medal in the 200 metre individual medley at the 2015 FINA World Junior Swimming Championships. He also won a silver medal in the 4 × 200 m freestyle, swimming the second leg. Lewis competed at the 2015 Commonwealth Youth Games where he brought back a total of 8 medals, 5 of them being gold. There, he also set a personal best time in the 50 metre backstroke and the 400 m individual medley.