Margaret Jeffrey Rioch (1907–1996) was an American psychotherapist, internationally known for her critical work in the field of psychology. She is best known for her role in establishing a new method of training for mental health counselors. Rioch's publications and projects have directly led to the current systems of mental health care treatment. Notable methods that have stemmed from her work include crisis hotlines and the use of support groups.[1] She died in 1996 at the age of 89.