Earnest Sevier Cox (January 24, 1880 – April 26, 1966) was an American Methodist preacher, political activist and white-supremacist. He is best known for his political campaigning in favor of stricter segregation between blacks and whites in the United States through tougher anti-miscegenation laws, and for his advocacy for "repatriation" of African Americans to Africa, and for his book White America.