Roman Catholic Diocese of Arundel and Brighton

The Roman Catholic Diocese of Arundel and Brighton is a Latin Church Roman Catholic diocese in southern England covering the counties of Sussex and Surrey . The diocese was erected on 28 May 1965 by Pope Paul VI, having previously been a part of the larger Diocese of Southwark, which was elevated to an archdiocese with a new ecclesiastical province on the same date.

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.

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