Jimmy Kinnon, Scottish-American activist, founded Narcotics Anonymous (born 1911)

James Patrick Kinnon, commonly known as Jimmy Kinnon or "Jimmy K.", was one of the primary founders of Narcotics Anonymous (NA), a worldwide fellowship of recovering addicts. During his lifetime, he was usually referred to as "Jimmy K." due to NA's principle of personal anonymity on the public level. He never referred to himself as a founder of NA, although the record clearly shows that he played a founding role.

Narcotics Anonymous (NA), founded in 1953, describes itself as a "nonprofit fellowship or society of men and women for whom drugs had become a major problem." Narcotics Anonymous uses a 12-step model developed for people with varied substance use disorders and is the second-largest 12-step organization, after 12-step pioneer Alcoholics Anonymous.