The Diocese of Oxford is a Church of England diocese that forms part of the Province of Canterbury. The diocese is led by the Bishop of Oxford, and the bishop's seat is at Christ Church Cathedral, Oxford. It contains more church buildings than any other diocese and has more paid clergy than any other except London.

Steven John Lindsey Croft is a British bishop in the Church of England and a theologian specialising in mission. He has been Bishop of Oxford since the confirmation of his election on 6 July 2016. He was the Bishop of Sheffield from 2008 to 2016; previously he was Archbishops' Missioner and Team Leader of Fresh Expressions, a joint Church of England and Methodist initiative. He falls within the open evangelical tradition of Anglicanism.