Mary Fenner Dallman (April 11, 1935 – December 21, 2021) was an American neuroendocrinologist and professor emerita at University of California, San Francisco,[1] where she was the first tenure-track female faculty member in the Department of Physiology and worked for 38 years before retiring in 2007. She is known for her elucidation of the hypothalamic-pituitary-adrenal axis, and the discovery that comfort foods dampen the stress response.[2]