Yana Klochkova is a retired Ukrainian swimmer, born on July 7, 1978, in Kharkiv, Ukraine. She is best known for her achievements in the individual medley and butterfly events. Klochkova gained international recognition for her performances in the Olympic Games, where she won two gold medals in the 2000 Sydney Olympics and two more in the 2004 Athens Olympics. Throughout her career, Klochkova set multiple world records and became a prominent figure in competitive swimming. She also earned numerous titles at the World Championships and European Championships, solidifying her status as one of Ukraine's most successful athletes in the sport.