Andreas Spengler (born 10 Juni 1947 in Goslar) is a German psychiatrist and researcher who conducted through 1974 and 1975 a well-known sociological study on sadomasochism in men at the Institute for Sexual Research in the University Hospital Eppendorf in Hamburg, Germany.
For his MD at the Institute for Sexual Research at the University Hospital Eppendorf in Hamburg in 1976 he laid the first international empirical survey of sadomasochists and their subculture.
In Hamburg he later became involved in social-psychiatric reform projects and the development of psychiatric emergency service.
He is a full member of the International Academy of Sex Research and a member of other professional societies,[1] and has published about sexology, psychiatric emergencies, involuntary commitment, forensic psychiatry, and mental health service.
From 2008 to spring 2013 he has served as chairman of the Lower Saxony Committee on matters of mental health care.