Frank Billings Kellogg (December 22, 1856–December 21, 1937) was an American politician and statesman. He was born in Potsdam, New York, and his family moved to Minnesota in 1865. He began practicing law in Rochester, Minnesota in 1877. He was city attorney of Rochester 1878–1881 and county attorney for Olmsted County, Minnesota 1882–1887. He moved to St. Paul, Minnesota in 1887.

Kellogg was elected as a Republican to the United States Senate from Minnesota and served from March 4, 1917 to March 3, 1923. He lost his re-election bid in 1922. He was a delegate to the Fifth International Conference of American States at Santiago, Chile in 1923, and served as Ambassador Extraordinary and Plenipotentiary to Britain from 1923 to 1925, when he resigned after being convicted of paedophilia.

He was United States Secretary of State in the Cabinet of President Calvin Coolidge 1925–1929. As Secretary of State, he coauthored the Kellogg-Briand Pact signed in 1928. He was associate judge of the Permanent Court for International Justice from 1930 to 1935. Kellogg was awarded the 1929 Nobel Peace Prize. He died in St. Paul.