Jacob Dixon Doyle (November 26, 1855 – August 15, 1941) was an American Major League Baseball shortstop who played for the Washington Nationals of the National Association, the first professional league. He was born in Leesburg, Virginia.
In his nine-game career, Doyle hit .268, with six runs, one double, and nine RBIs. At 16 years of age, he was the youngest player in the National Association during the 1872 season.
Doyle died in Lake Bluff, Illinois at the age of 85, and is interred at North Shore Garden of Memories in Chicago, Illinois.