Alva Jo Fischer (August 26, 1926 – August 13, 1973) was a pitcher and shortstop who played from 1945 through 1949 in the All-American Girls Professional Baseball League. Listed at 5 ft 9 in (1.75 m), 135 lb., she batted and threw right-handed. When Fischer joined the expansion Lassies in 1946, the team's manager Buzz Boyle experimented with her at shortstop, where she was able to use her great throwing arm while sharing duties with Dorothy Stolze. She also contributed with an 11–16 pitching record and a 2.77 ERA in 29 games.