Arthur Joseph O'Neill (December 14, 1917 – April 27, 2013) was an American prelate of the Roman Catholic Church.
He was ordained a priest for the Diocese of Rockford, Illinois, by Bishop John Boylan on March 27, 1943.
Pope Paul VI appointed O'Neill as bishop of the Diocese of Rockford on August 19, 1968.
Contemporary accounts described O'Neill as a compassionate man who enjoyed speaking with parishioners.
[2] Pope John Paul II accepted O'Neill's resignation as bishop of Rockford on April 19, 1994.