Ruth Anna Marie Schmidt (April 22, 1916 – March 29, 2014) was an American geologist and paleontologist who was a pioneer for women scientists. She spent most of her career in Alaska, where she established a United States Geological Survey (USGS) field office and established the first Department of Geology at the Anchorage Community College, now part of the University of Alaska Anchorage. In 1964, Schmidt directed the initial assessment of the damage done to the city of Anchorage by the Great Alaska Earthquake, the largest earthquake in North American history, and the second largest earthquake ever to be recorded. She worked for the USGS in Washington, DC during the era of McCarthyism and was investigated twice for disloyalty because of her membership in the interracial Washington Cooperative Bookshop. She was cleared both times. She earned a number of awards, honors, and letters of commendation and appreciation. After her death in 2014, she was recognized as a philanthropist.