Yannick Agnel (born 9 June 1992) is a French former competitive swimmer who specializes in freestyle events, and is a three-time Olympic medalist. In his Olympic debut at the 2012 Summer Olympics in London, he won gold in the 200-meter freestyle, gold in the 4×100-meter freestyle relay, and silver in the 4×200-meter freestyle relay. He is the current world record holder in the 400-meter freestyle (short course), the European record holder in the 800-meter freestyle (short course), and the national record holder in the 200- and 400-meter freestyle (long course).