Robert Dennis "Denny" Doyle (born January 17, 1944) is a former Major League Baseball second baseman who played for the Philadelphia Phillies (1970–1973), California Angels (1974–1975) and Boston Red Sox (1975–1977). He batted left-handed and threw right-handed. He was considered a good-fielding second baseman but a weak hitter, finishing with a career batting average of .250 and 16 home runs. Doyle enjoyed his best season in 1975, when after being traded from the Angels to the Red Sox in June, he batted .310 in 89 games for the Red Sox, including a league-best 22 game hit streak. He was the starting second baseman for the Red Sox in the 1975 American League Championship Series and World Series.