Friendly is the surname of:
Alfred Friendly (1911-1983), American journalist and editor
David T. Friendly (born 1956), American film producer
Ed Friendly (1922-2007), American TV producer
Fred W. Friendly, former president of CBS News
Henry Friendly, judge of the United States Court of Appeals for the Second Circuit
Michael Friendly (born 1945), a professor of psychology at York University in Ontario, Canada
Phil Friendly (born 1977), American rockabilly and country rock musician