Chester Cathedral is a Church of England cathedral and the mother church of the Diocese of Chester. It is located in the city of Chester, Cheshire, England. The cathedral, formerly the abbey church of a Benedictine monastery dedicated to Saint Werburgh, is dedicated to Christ and the Blessed Virgin Mary. Since 1541, it has been the seat of the Bishop of Chester.

The Diocese of Chester is a Church of England diocese in the Province of York covering the pre-1974 county of Cheshire and therefore including the Wirral and parts of Stockport, Trafford and Tameside.