Ralph Arthur "Babe" Pinelli, born Rinaldo Angelo Paolinelli (October 18, 1895 – October 22, 1984), was an American third baseman and umpire in Major League Baseball. Born in San Francisco, his playing career was mostly with the Cincinnati Reds from 1922 to 1927. He also played with the Chicago White Sox (1918) and Detroit Tigers (1920). After that he became a highly regarded National League umpire from 1935 to 1956, officiating in 6 World Series: 1939, 1941, 1947, 1948 (outfield only), 1952 and 1956; he was crew chief for the final two Series. He also umpired in the All-Star game in 1937, 1941, 1950 and 1956, working behind home plate for the second half of the last three games, and he worked in the 3-game series to determine the NL champion in 1946.