Oliver Spencer (April 17, 1931 – April 28, 1991) was an American National Football League (NFL) tackle and assistant coach. He played eight seasons in the NFL, with the Detroit Lions (1953 and 1956), the Green Bay Packers (1957 and 1958), the Detroit Lions again (1959, 1960 and 1961), and the Oakland Raiders (1963). Later. he was an assistant coach for the Raiders for seventeen seasons. Spencer died on April 28, 1991, of a heart attack.