Walt Downing (born June 11, 1956) is a former American football player. He played professional football as an offensive guard for the San Francisco 49ers from 1978 to 1983. He played for Bill Walsh and was a member of the 1981 San Francisco 49ers team that won the franchise's first Super Bowl. He also played for the Denver Gold in the USFL. Downing played college football for Bo Schembechler at the University of Michigan from 1975 to 1977. He was a co-captain of the 1977 Michigan Wolverines football team and was selected that year as a first-team All-American.