Joseph Clifford Fenton (January 16, 1906 - July 7, 1969) was a Catholic priest who promoted conservative theology. He was a professor of fundamental dogmatic theology at the Catholic University of America and editor of the American Ecclesiastical Review (1943–1963).[1] A strong opponent of liberal beliefs, he was a significant American Catholic theologian of the 20th century. He served as a peritus for Cardinal Ottaviani at the Second Vatican Council, where his position was overruled. He was also secretary of the Catholic Theological Society of America.[2]