James Robert "Bob" Polk (September 2, 1915 – March 19, 1988) is a retired basketball coach in American college basketball. Polk coached the Vanderbilt Commodores, the Trinity Tigers, the Saint Louis Billikens and Rice University. He began his college coaching career as an assistant coach a Georgia Tech during World War II. His first coaching job was at his high school alma mater Tell City High, in Tell City, Indiana.
He is also known as J. Robert Polk.
Polk died of heart disease at age 69 in Murfreesboro, Tennessee, on December 10, 1988. He is buried in Tell City, Indiana. He was memorialized by his induction into the Tennessee Sports Hall of Fame in 1990.