Rowan Douglas Williams (born 14 June 1950 in Swansea, Wales) is an Anglican bishop and theologian. He is the current (104th) Archbishop of Canterbury, Metropolitan of the Province of Canterbury and Primate of All England, offices he has held since early 2003.

Williams was previously Bishop of Monmouth and Archbishop of Wales (making him the first Archbishop of Canterbury in modern times not to be appointed from within the Church of England, and the first bishop to serve as primate of two provinces of the Anglican Communion), and had spent much of his earlier career as an academic at the Universities of Cambridge and Oxford successively. His primacy has been marked by much speculation that the Anglican Communion (of which the Archbishop of Canterbury is symbolic head) is on the verge of fragmentation, and by Williams's attempts to keep all sides talking to one another.

Williams was born in Swansea, Wales, into a Welsh-speaking family. He was the only child of Aneurin Williams and Dolphine (Del, Nancy) Morris - Presbyterians who converted to Anglicanism in 1961. He was educated at Dynevor School, Swansea; Christ's College, Cambridge, where he studied theology; and Wadham College, Oxford, where he took his DPhil in 1975.