Fred Herman Hildebrandt (August 2, 1874 – January 26, 1956) was a member of the United States House of Representatives from South Dakota, serving three consecutive terms.

He worked for the railroad for nearly three decades and was appointed as head of the South Dakota Game and Fish Commission, serving from 1927 to 1931.

He started working for the Chicago and North Western Railway and made that his career, from 1903 to 1932.

He was appointed as head of the South Dakota Game and Fish Commission, serving from 1927 to 1931.

In 1938, he ran unsuccessfully for the position of United States Senator, but lost to former Governor Tom Berry in the Democratic primary.