Janel Simone Jorgensen (born May 18, 1971), later known by her married name Janel McArdle, is an American former competition swimmer and butterfly specialist. As a 17-year-old at the 1988 Summer Olympics in Seoul, South Korea, she won a silver medal as a member of the second-place U.S. team in the women's 4×100-meter medley relay, together with her teammates Beth Barr (backstroke), Tracey McFarlane (breaststroke), and Mary Wayte (freestyle). Jorgensen received an athletic scholarship to attend Stanford University, where she swam for the Stanford Cardinal swimming and diving team in National Collegiate Athletic Association (NCAA) and Pacific-10 Conference competition. In 1992–93, she was the recipient of the Honda Sports Award for Swimming and Diving, recognizing her as the outstanding college female swimmer of the year. In 2021, she was honored to be a part of the CSCAA's 100 Greatest Collegiate Swimmers of All Time. Jorgensen is the current COO of Swim Across America, a national non-profit organization that has raised over $100 million for cancer research, prevention and treatment through swimming events all over the United States.