Frank Joseph Corridon [Fiddler] (November 25, 1880 – February 21, 1941) was an American pitcher in Major League Baseball who played for three teams between the 1904 and 1910 seasons.

Listed at 6 ft 0 in (1.83 m) 170 lb., Corridon was a switch-hitter and threw right-handed.

Corridon entered the majors in 1904 with the Chicago Cubs, appearing for them in 24 games before joining the Philadelphia Phillies (1904–1905, 1907–1909) and St. Louis Cardinals (1910).

His most productive season came with the 1907 Phillies, when he posted career-numbers in wins (18), starts (32), complete games (23) and innings pitched (274.0), while collecting a 2.46 ERA.

In a six-year career, Corridon posted a 70–67 record with a 2.80 ERA in 180 appearances, including 140 starts, 99 complete games, 10 shutouts, seven saves and 1216.0 innings of work, posting a 1.22 strikeout-to-walk ratio (458-to-375).