Bio

Léon Marchand (born 17 May 2002) is a French swimmer. He is the European record holder in the long course 400 metre individual medley and the French record holder in the long course 200 metre individual medley, 200 metre butterfly and 200 metre breaststroke. He competed in the 400 metre individual medley at the 2020 Summer Olympics, placing sixth in the final. At the 2022 NCAA Division I Men's Swimming and Diving Championships, he won NCAA titles in the 200 yard breaststroke and 200 yard individual medley. He won the gold medal in the 400 metre individual medley and the 200 metre individual medley and the silver medal in the 200 metre butterfly at the 2022 World Aquatics Championships.