There have been five bishops of this diocese. The first was Bishop
David Cashman, who was consecrated on 14 June 1965. He died in March 1971 and was succeeded by Bishop
Michael George Bowen, who was
translated in April 1977 to head the Archdiocese of Southwark. He was succeeded by then-Bishop
Cormac Murphy-O'Connor who, in March 2000, became the 10th Archbishop of
Westminster, and later, a Cardinal. His successor, Bishop
Kieran Conry, served from 2001 until his resignation in 2014. On Saturday, 21 March 2015,
Pope Francis appointed Bishop
Richard Moth, who had been serving as the Catholic Military Ordinary for Great Britain, to be the fifth Bishop of Arundel and Brighton. He was installed on Thursday, 28 May 2015, at Arundel Cathedral, the fiftieth anniversary of the diocese's creation. He was appointed to be the 12th Archbishop of Westminster on 19 December 2025. •
David John Cashman (1965-1971) •
Michael George Bowen (1971-1977), appointed Archbishop of Southwark •
Cormac Murphy-O'Connor (1977-2000), appointed Archbishop of Westminster (Cardinal in 2001) •
Kieran Thomas Conry (2001-2014) •
Charles Phillip Richard Moth (2015-2025) •
vacant (since 19 December 2025)
Coadjutor Bishop •
Michael George Bowen (1970-1971)
Other priests of this diocese who became bishops •
Maurice Noël Léon Couve de Murville, appointed Archbishop of Birmingham in 1982 •
Bernard Longley, appointed auxiliary bishop of Westminster in 2003 ==Metropolitan province==