Albert Leonard Jacobson [born Albin Leonard Jacobson] (June 5, 1881 – January 31, 1933) was a pitcher in Major League Baseball who played for three different teams between 1904 and 1907. Listed at 6 ft 0 in (1.83 m), 170 lb., he batted and threw left-handed. A native of Port Washington, Wisconsin, Jacobson always was a bad luck pitcher either due to injury or playing on a bad baseball team. He entered the majors in 1904 with the Washington Senators, playing for them two years before joining the St. Louis Browns (1906–1997) and Boston Americans (1907).