George Tibbles (June 7, 1913 - February 14, 1987) was a screenwriter and television writer, contributing to TV series such as Leave it to Beaver, Date with the Angels, The Munsters, The Addams Family, Alice, Family Affair, Dennis the Menace, and Who's the Boss?.
Tibbles' greatest achievement however, was on My Three Sons the sitcom starring Fred MacMurray which he created under the ever-watchful eye of Executive Producer Don Fedderson. He wrote a massive 96 scripts of the show's 380 episodes — more than that of any other writer — and served the series as a Line Producer (in Season 2) and its Story Editor and Consultant for most of the twelve seasons the show was on the air.
Born in New York City, Tibbles died of cancer in 1987 in Rancho Mirage, California. His son, Douglas Tibbles, was also a television script writer who co-wrote teleplays both solely and with his father on numerous shows.