Revilo Pendleton Oliver was an American professor of Classical philology, Spanish, and Italian at the University of Illinois at Urbana-Champaign. He was a founding member of the John Birch Society in 1958, where he published in its magazine, American Opinion, before resigning in 1966. He was a polemicist for right-wing, white supremacist and antisemitic causes. He later advised the Holocaust denial group the Institute for Historical Review.