Kaylee Rochelle McKeown is an Australian swimmer and triple Olympic gold medalist. She is the world record holder in the long course 50 metre backstroke, 100 metre backstroke and both the long course and short course 200 metre backstroke. She won gold in both the 100 metre and 200 metre backstroke, as well as the 4Ã100 metre medley relay at the 2020 Summer Olympics staged in Tokyo in 2021. In 2023, she was named as the "Best Female Swimmer of the Year" by World Aquatics, after sweeping gold in all three events of backstroke at all three World Cup legs, held in Berlin, Athens and Budapest in October, 2023.