Herbert Spiegel (June 29, 1914 – December 15, 2009) was an American psychiatrist who popularized therapeutic hypnosis as a mainstream medical treatment for patients suffering from pain, anxiety and addictions.
He also gained notoriety for his treatment of the woman known as Sybil, whose case became the subject of a book, 1976 television miniseries and 2007 television movie.
Herbert Spiegel was the father of David Spiegel, M.D., of Stanford University, who likewise is an expert in hypnosis.