Adelaide ||align="center" |6 July 1915 ||align="center"|5 November 1934 ||align="right"| ||Died in office |- |rowspan="2" align="center"| ||rowspan="2" |Andrew Killian †||Coadjutor Archbishop of Adelaide ||align="center" |11 July 1933 ||align="center"|5 November 1934 ||align="right"| ||Succeeded as Archbishop of Adelaide |- |Archbishop of Adelaide ||align="center" |5 November 1934 ||align="center" |28 June 1939 ||align="right"| ||Died in office |- |align="center"| ||Matthew Beovich †||Archbishop of Adelaide ||align="center" |11 December 1939 ||align="center"|1 May 1971 ||align="right"| ||Retired and appointed Archbishop Emeritus of Adelaide |- |rowspan="3" align="center"| ||rowspan="3" |James William Gleeson †||Auxiliary Bishop of Adelaide ||align="center" |15 February 1957 ||align="center" |6 July 1964 ||align="right"| ||Elevated as Coadjutor Archbishop of Adelaide |- |Coadjutor Archbishop of Adelaide ||align="center" |6 July 1964 ||align="center" |1 May 1971 ||align="right"| ||Succeeded as Archbishop of Adelaide |- |Archbishop of Adelaide ||align="center" |1 May 1971 ||align="center" |19 June 1985 ||align="right"| ||Resigned and appointed Archbishop Emeritus of Adelaide |- |rowspan="2" align="center"| ||rowspan="2" |Leonard Faulkner †||Coadjutor Archbishop of Adelaide ||align="center" |2 September 1983 ||align="center"|19 June 1985 ||align="right"| ||Succeeded as Archbishop of Adelaide |- |Archbishop of Adelaide ||align="center" |19 June 1985 ||align="center" |3 December 2001 ||align="right"| ||Retired and appointed Archbishop Emeritus of Adelaide |- |rowspan="2" align="center"| ||rowspan="2" |Philip Wilson † ||Coadjutor Archbishop of Adelaide ||align="center" |30 November 2000 ||align="center"|3 December 2001 ||align="right"| ||Succeeded as Archbishop of Adelaide |- |Archbishop of Adelaide ||align="center" |3 December 2001 ||align="center" |30 July 2018 ||align="right"| ||Resigned |- |align="center"|12 || Patrick O'Regan || Archbishop of Adelaide ||align=center|25 May 2020 ||align="center" |Incumbent ||align="right"| || |} Note: On 3 June 2018 Pope Francis named Bishop Gregory O’Kelly, S.J. of Port Pirie as Apostolic Administrator of Adelaide. This occurred after Archbishop Philip Wilson was initially found guilty of concealing child-abuse on 22 May 2018 and did not resign. Pope Francis eventually accepted his letter of resignation on 30 July 2018. Wilson's conviction was later overturned on appeal, but he did not return to the role. Coadjutors are included in the above table. Auxiliary bishops Other priest of this diocese who became bishop Charles Victor Emmanuel Gauci, appointed Bishop of Darwin in 2018 Sexual abuse cases Father Albert Davis (died 2007), a member of the Dominican Fathers, was charged in 2006 with 17 incidents of indecent assault involving seven boys at Blackfriars Priory School from 1956 to 1960. Davis was committed to stand trial in the Adelaide District Court, but he died before proceedings were commenced. Father Charles Barnett pleaded guilty in 2009 (after extradition from Indonesia) to three child sex charges