Harold Augustine "Hal" Haid (December 21, 1897 – August 13, 1952) was a professional baseball player.
He was a right-handed pitcher over parts of six seasons (1919, 1928–1931, 1933) with the St.
Louis Browns, St.
Louis Cardinals, Boston Braves and Chicago White Sox.
For his career, he compiled a 14–15 record in 119 appearances, most as a relief pitcher, with a 4.16 earned run average and 103 strikeouts.
An alumnus of Belmont Abbey College, Haid was born in Barberton, Ohio and later died in Los Angeles at the age of 54.