Mary Holda, later Elrod (September 30, 1915 – April 14, 2016) was a utility infielder who played in the All-American Girls Professional Baseball League. She batted and threw right-handed.
A native of Mansfield, Ohio, Holda was one of the original South Bend Blue Sox founding members of the All-American Girls Professional Baseball League in its 1943 inaugural season. Known as "Bucky" by her teammates, she served primarily as a backup at third base and shortstop for South Bend. She was also available for pinch hitting duties, while posting a .205 batting average in 29 games.
Holda is part of Women in Baseball, a permanent display based at the Baseball Hall of Fame and Museum in Cooperstown, New York, which was unveiled in 1988 to honor the entire All-American Girls Professional Baseball League.