Richard Robert Volk (born March 15, 1945) is an American former professional football player who was a safety in the National Football League (NFL) for the Baltimore Colts, New York Giants, and Miami Dolphins. He retired with 38 career interceptions and 13 fumble recoveries, and totaled 574 yards on interception returns and 548 yards on punt returns.

Volk played college football for the Michigan Wolverines from 1964 to 1966 and was a member of the 1964 team that won the Big Ten Conference championship and defeated Oregon State in the 1965 Rose Bowl. He played as a defensive back for Michigan's defensive unit and as a halfback and quarterback for the offensive unit. Volk was also selected by the Sporting News as a first-team All-American in 1967. In 1989, he was inducted into the University of Michigan Athletic Hall of Honor; Volk and Ron Johnson were the first two football players from the 1960s to be so honored.

Volk went on to a successful 12-year career as a safety in the National Football League. He played nine years with the Baltimore Colts from 1967 to 1975. He was a member of the Colts' teams that lost Super Bowl III to the New York Jets and won Super Bowl V against the Dallas Cowboys. Volk was selected as an NFL All-Pro four times (1968–1971) and played in three Pro Bowls (1967, 1969, 1971). After being released by the Colts in April 1976, Volk concluded his playing career with the New York Giants in 1976 and the Miami Dolphins from 1977 to 1978. In 1977, Volk was selected by Baltimore fans as a starter for the Colts' 25th anniversary team.

Volk was born in Toledo, Ohio, in 1945. He attended Wauseon High School in Wauseon, Ohio, where he was a three-sports star. He was an all-league basketball and baseball player and also played quarterback on the football team.

Volk enrolled at the University of Michigan in 1963. His decision to attend Michigan rather than Ohio State was influenced by family ties, including Bob Chappuis, who was Volk's uncle and finished second in the Heisman Trophy voting while playing for the undefeated 1947 Wolverines. Volk noted:

"I had all these stories growing up. He [Bob Chappuis] was my hero, so I always wanted to go to Michigan. ... And I didn't like Woody [Hayes] anyway. It was just my Grandpa telling me because he didn't like Woody, and he hoped Woody would choke on his Thanksgiving turkey. ... Because of Uncle Bob going to Michigan, that's where I wanted to go. You know, I loved the helmets, loved the uniforms. I said 'Hey, if I could just sit on the bench, that's all I care about.'"

At Michigan, Volk was a three-year starter from 1964 to 1966. Prior to the start of the 1964 season, he was given jersey no. 49, the same number worn by his uncle when he played for Michigan. During the 1964 season, Volk played at the halfback position on both offense and defense and also served as a backup at quarterback to Bob Timberlake. In his first game for the Wolverines, he intercepted a pass in the end zone against Air Force. In his second game, he helped the Michigan defense hold scoreless a high-scoring Navy team led by Hall of Fame quarterback Roger Staubach. He also threw a 33-yard touchdown pass against Northwestern in October 1964. In a close victory over Minnesota, after the Golden Gophers had cut Michigan's lead to five points and advanced the ball to Michigan's 7-yard line, Volk "smashed through to down the Gopher ball carrier, and save the game on fourth down." Volk was described by sports writer Joe Hendrickson as "instinctive — usually in the right place to mess things up for the opposition." Volk helped the 1964 Michigan team win the Big Ten Conference championship and defeat Oregon State in the 1965 Rose Bowl by a score of 34–7.

As a junior in 1965, Volk started all 10 games for Michigan at cornerback and also started four games on offense as the left halfback. He was selected by both the Associated Press and the United Press International as a first-team All-Big Ten defensive back at the end of the 1965 season.