Karissa Schweizer is an American middle- and long-distance runner, Olympian and World Record holder in the women's 4x1500 meters relay. She competed in the 2020 Tokyo Olympics in the 5000 meters and 10,000 meters events finishing 11th and 12th, respectively. In 2020, she set the indoor 3000 meters American Record with a time of 8:25.70.
