Louis George Gregory (born June 6, 1874, in Charleston, South Carolina; died July 30, 1951, in Eliot, Maine) was a prominent American member of the Baháʼí Faith who was devoted to its expansion in the United States and elsewhere. He traveled especially in the South to spread the word about it. In 1922 he was the first African American elected to the nine-member National Spiritual Assembly of the United States and Canada. He was repeatedly re-elected to that position, leading a generation and more of followers. He also worked to prosyletize the faith to Central and South America.