Martha Stout is an American psychologist and author.
She completed her professional training in psychology at the McLean Psychiatric Hospital and obtained her Ph.D. at Stony Brook University. She served on the clinical faculty of the Harvard Medical School for over 25 years and also served on the academic faculties of The New School for Social Research, the Massachusetts School of Professional Psychology, and Wellesley College. She writes on the subjects of conscience, character, and integrated awareness. Her work in psychology and cultural commentary has appeared in The Boston Globe and The Huffington Post, and she is a contributing writer for The New Republic. Stout is in private practice as a clinical psychologist in Boston, where she specializes in recovery from psychological trauma, post-traumatic stress disorder, and suicide. She resides on Cape Ann, Massachusetts.