Joseph Arthur Costello (May 9, 1915 – September 22, 1978) was a Roman Catholic bishop of the Catholic Church in the United States who served as an auxiliary bishop of the Archdiocese of Newark, New Jersey from 1963 to 1978.
He was consecrated a bishop by Archbishop Thomas Boland on January 24, 1963.
Costello attended three of the four sessions of the Second Vatican Council (1962-1965).
He continued to serve as an auxiliary bishop until his death at the age of 63 on September 22, 1978.
This article about an American Catholic bishop or archbishop is a stub.