Frederic Mosley Sackett (December 17, 1868 – May 18, 1941) served as a United States senator from Kentucky and ambassador to Germany during the Hoover Administration.

Although he began as an attorney, he gradually became involved in his wife's family business, the mining of coal and the manufacture of cement.

He was elected as a Republican to the United States Senate in 1924 and served from March 4, 1925, to January 9, 1930, when he resigned, having been appointed Ambassador to Germany by President Herbert Hoover.

[2] On March 24, 1933, Sackett sent a telegram to the State Department: “On the basis of this law the Hitler Cabinet can reconstruct the entire system of government as it eliminates practically all constitutional restraints.” He then resigned his post and resumed afterwards his former business activities.

Senator Sackett was a companion of the Ohio Commandery of the Military Order of the Loyal Legion of the United States.