Jennifer Simpson (née Barringer; born August 23, 1986) is an American middle distance runner and steeplechaser. She represented the United States at the 2008 Beijing Olympics, 2012 London Olympics and 2016 Rio Olympics. She is a former American record holder for the 3000 metres steeplechase. In the 1500 metres, she won a gold medal at the 2011 World Championships, a silver medal at the 2013 and 2017 World Championships, and a bronze medal at the 2016 Olympic Games in Rio.