Charles Robert Knox (April 27, 1932 – May 12, 2018) was an American football coach at the high school, collegiate and professional levels. He served as head coach of three National Football League (NFL) teams, the Los Angeles Rams (1973–1977; 1992–1994), Buffalo Bills (1978–1982), and Seattle Seahawks (1983–1991). He was a three-time AP NFL Coach of the Year and is a member of the Seahawks Ring of Honor.