Peter David Gregory Smith (21 October 1943 – 6 March 2020) was an English prelate of the Catholic Church, having served as archbishop of the Archdiocese of Southwark.

He then undertook studies for the priesthood at St. John's Seminary in Wonersh and the Pontifical University of St. Thomas Aquinas (Angelicum) in Rome (earning his doctorate in canon law).

After doing pastoral work from 1972 to 1974, Smith began teaching canon law at his alma mater, St John's Seminary, Wonersh, in 1977.

He received his episcopal consecration on the following 21 May from Cardinal Basil Hume OSB, with Archbishop Michael George Bowen and Bishop Alan Charles Clark serving as co-consecrators.

Smith was later named Archbishop of Cardiff on 26 October 2001,[2] following the resignation of the Capuchin, John Ward, amid a controversy about paedophile priests in the archdiocese.

[9] On 10 June 2019, Smith's resignation from the pastoral care of the Archdiocese of Southwark was accepted by Pope Francis, and Bishop John Wilson was named as his successor.