John Guilbert Avildsen (December 21, 1935 – June 16, 2017) was an American film director. He won the Academy Award for Best Director in 1977 for Rocky. Other films he directed include Joe, Save the Tiger, Fore Play, The Formula, Neighbors, For Keeps, Lean on Me, The Power of One, 8 Seconds, Inferno, Rocky V and the first three The Karate Kid films.

Avildsen was born in Oak Park, Illinois, the son of Ivy (née Guilbert) and Clarence John Avildsen. He was educated at The Hotchkiss School and New York University. After starting out as an assistant director on films by Arthur Penn and Otto Preminger, John Avildsen received his first success with the low budget feature Joe (1970) which received critical acclaim for star Peter Boyle and moderate box office business.