2004 Olympic Team
- Womens 400-meter freestyle relay – Silver Medal
- Womens 4×100-meter medley relay – Silver Medal
Jennifer Elisabeth Thompson (born February 26, 1973), later known by her married name Jenny Cumpelik, is an American former competition swimmer.
She is one of the most decorated Olympians in history: twelve medals, including eight gold medals, in the 1992, 1996, 2000, and 2004 Summer Olympics.
Thompson, a Massachusetts native who calls Dover, New Hampshire her hometown, began swimming at age 7 at a summer country club called Cedardale in Groveland, Massachusetts. During the indoor season, she swam at the Danvers YMCA from ages 8 to 10, and then at the Andover-North Andover YMCA from the ages of 10 to 12. At age 12 she began swimming for Seacoast Swimming Association under coaches Amy and Mike Parratto, and moved to Dover at age 13.
She first appeared on the international scene as a 14-year-old in 1987, when she won the 50-meter freestyle and placed third in the 100-meter freestyle at the Pan American Games. She won her first world championship in 1991, as part of the USA’s winning 4×100-meter freestyle relay team, and held the world record in the 50-meter and 100-meter freestyle when she participated in the 1992 Olympics in Barcelona, Spain.
Thompson attended Stanford University, and swam for the Stanford Cardinal swimming and diving team in National Collegiate Athletic Association (NCAA) and Pacific-10 Conference competition. She was the recipient of the 1994–95 Honda Sports Award for Swimming and Diving, recognizing her as the outstanding college female swimmer of the year.