Florian Frederick Ackley (April 10, 1937 – May 22, 2002) was an American professional baseball pitcher who appeared in five Major League Baseball games for the Chicago White Sox for parts of the 1963 and 1964 seasons. A right-hander, he batted left-handed and was listed as 6 feet 1 inch (1.85 m) tall and 202 pounds (92 kg). He was a native of Hunter, Wisconsin, and attended Hayward High School. In his five big-league games, Ackley posted a 1–0 career won–lost record and a 4.19 earned run average, permitting 17 hits and 11 bases on balls, with 17 strikeouts, in 191⁄3 innings pitched.