Clément Lefert is a retired French Olympic champion in swimming. He won a gold medal at the London 2012 Summer Olympics in the 4×100 meters freestyle relay, with team mates Amaury Leveaux, Fabien Gilot, and Yannick Agnel, besting the American relay team that included Michael Phelps. He also won a silver medal in the 4x200 meters freestyle relay. Lefert is an economics major at the University of Southern California and holds USC's record in the 200 yard freestyle (1:33.67). Lefert was made a Knight, Chevalier of the Légion d'honneur.