Robert Frank Knoop (/kʌˈnɒp/ kuh-NOP; born October 18, 1938) is an American former Major League Baseball second baseman and coach. In his nine-year MLB career, he appeared in 1,153 games as a member of the Los Angeles / California Angels (1964–69), Chicago White Sox (1969–70) and Kansas City Royals (1971–72). He threw and batted right-handed, stood 6 feet 1 inch (1.85 m) tall and weighed 170 pounds (77 kg).