Mary Rini (March 5, 1925 - September 4, 2019) was an American former pitcher who played in the All-American Girls Professional Baseball League.

[1][2][3] Rini was a below average pitcher during her AAGPBL career.

She entered the league in 1945 with the Kenosha Comets, before joining the Muskegon Lassies in 1946.

[1] In a two-season career, Rini posted a 2–12 record and an ERA of 3.62 in 23 pitching appearances, allowing 103 hits and 48 walks, while striking out only 15 batters in 112.0 innings of work.

[4] The AAGPBL folded in 1954, but there is a permanent display at the Baseball Hall of Fame and Museum at Cooperstown, New York since November 5, 1988, that honors the entire league rather than any individual figure.