James Cecil Hatlo (September 1, 1897 – December 1, 1963), better known as Jimmy Hatlo, was an American cartoonist who in 1929 created the long-running comic strip and gag panel They'll Do It Every Time, which he wrote and drew until his death in 1963. Hatlo's other strip, Little Iodine, was adapted into a feature-length movie in 1946.