Adela "Del" Riek Scharr (August 10, 1907 – March 11, 1998) was an American aviator. Scharr was the first woman in St. Louis to earn her commercial flight license and worked as a flight instructor at Lambert Field. Scharr was recruited in 1942 to join the Women's Axillary Ferrying Squadron (WAFS) and later flew planes as a WASP. Scharr was also the first woman to fly a P-39 Bell Aircobra. After World War II, Scharr was commissioned as a major in the Air Force and also worked as a teacher.