Derek Humphry (born 29 April 1930) is a British-born American journalist and author notable as a proponent of legal assisted suicide and the right to die philosophy.
In 1980, he co-founded the Hemlock Society and, in 2004, after that organization dissolved, he co-founded the Final Exit Network.
From 1988 to 1990, he was president of the World Federation of Right to Die Societies and is the current president of the Euthanasia Research & Guidance Organization (ERGO).He is the author several related books, including Jean's Way (1978), The Right to Die: Understanding Euthanasia (1986), and Final Exit: The Practicalities of Self-Deliverance and Assisted Suicide for the Dying (1991).
Since 1978, Derek Humphry has lived in the United States.