The Diocese of Guildford is a Church of England diocese covering eight and half of the eleven districts in Surrey, much of north-east Hampshire and a parish in Greater London. The cathedral is Guildford Cathedral and the bishop is the Bishop of Guildford. Of the two provinces of the church, it is in the Province of Canterbury.

The Cathedral Church of the Holy Spirit, Guildford, commonly known as Guildford Cathedral, is the Anglican cathedral in Guildford, Surrey, England. Earl Onslow donated the first 6 acres (2.4 ha) of land on which the cathedral stands, with Viscount Bennett, a former Prime Minister of Canada, purchasing the remaining land and donating it to the cathedral in 1947. Designed by Edward Maufe and built between 1936 and 1961, it is the seat of the Bishop of Guildford. The cathedral was listed as Grade II* by Historic England in 1981.