Helm Stierlin (* March 12, 1926 as Wilhelm Paul Stierlin in Mannheim), is a German psychiatrist, psychoanalyst and systemic family therapist. From 1974 to 1991 he was the medical director and chairowner of the Department for Psychoanalytice and Family Therapy at the Medical Faculty of the University of Heidelberg. Stierlin has contributed significantly to the establishment and further development of systemic therapy in Germany. Until 1995 he was the editor of the journal Familiendynamik. His scientific writings and books were translated into twelve languages.