user
Who won the most medals in Olympic history?
assistant
As of my last knowledge update in September 2021, American swimmer Michael Phelps holds the record for the most Olympic medals won by an individual athlete. Over the course of his career, Phelps has won a total of 28 Olympic medals, which include 23 gold medals, 3 silver medals, and 2 bronze medals. He has competed in five Olympic Games: 2000 (Sydney), 2004 (Athens), 2008 (Beijing), 2012 (London), and 2016 (Rio de Janeiro). Please check the latest sources for the most up-to-date information.