Fred O'Connor (born September 1, 1939) is a former American football coach and administrator whose career spanned more than 30 years at the high school, collegiate, and professional levels. He served in coaching positions in the National Football League (NFL), Canadian Football League (CFL), and World Football League (WFL). Most notably, O'Connor was the interim head coach of the NFL's San Francisco 49ers for the last seven games of the 1978 season, posting a mark of 1–6. He also was the executive director of athletics at The Catholic University of America from May 1984 until April 1990 and served as the Cardinals head football coach for three seasons (1987–1989), compiling an overall college football record of 17 wins and 13 losses.