Suzanne Ruth Dietrich (née Bell; 23 December 1926 – 13 June 2015) was an American amateur sports car racing driver, described as one of the pioneers of female motor racing. A school librarian, Dietrich was introduced into sports car racing by her husband. She spent most of her motor racing career in regional Sports Car Club of America (SCCA) races, however in the late 1960s, she took part in international-standard endurance events at Sebring and Daytona. During the early years of her career, she typically drove an MG TC, while later she raced a variety of Elvas and Porsches.