Ian James Thorpe, OAM (born 13 October 1982) is an Australian swimmer who specialises in freestyle, but also competes in backstroke and the individual medley. He has won five Olympic gold medals, the most won by any Australian, and with three gold and two silver medals, was the most successful athlete at the 2000 Summer Olympics. At the 2001 World Aquatics Championships, he became the first person to win six gold medals in one World Championship. In total, Thorpe has won eleven World Championship golds, the third-highest number of any swimmer. Thorpe was the first person to have been named Swimming World Swimmer of the Year four times, and was the Australian Swimmer of the Year from 1999 to 2003. His athletic achievements made him one of Australia's most popular athletes, and he was recognised as the Young Australian of the Year in 2000.