Eros Bolivar "Cy" Barger (May 18, 1885 – September 23, 1964) was a right-handed starting pitcher and left-handed batter who played in the American League for the New York Highlanders (1906–07); in the National League with the Brooklyn teams Superbas (1910) and Dodgers (1911–12), and for the Pittsburgh Rebels (1914–15) in the Federal League.