Robert William Humphreys (born August 18, 1935) is an American former professional baseball player and executive. A right-hander, Humphreys was a relief pitcher over all or parts of nine Major League Baseball seasons (1962–1970) with the Detroit Tigers, St. Louis Cardinals, Chicago Cubs, Washington Senators and Milwaukee Brewers. Humphreys was a member of the 1964 World Series champion Cardinals. An alumnus of Hampden-Sydney College, Humphreys was born in Covington, Virginia, and graduated from high school in Montvale. He was listed as 5 feet 11 inches (1.80 m) tall and 165 pounds (75 kg).