St Peter's Church is the parish church of Selsey, West Sussex, and dates from the 13th century. The church building was originally situated at the location of St Wilfrid's first monastery and cathedral at Church Norton some 2 miles north of the present centre of population.

The Diocese of Chichester is a Church of England diocese based in Chichester, covering Sussex. It was founded in 681 as the ancient Diocese of Selsey, which was based at Selsey Abbey, until the see was translated to Chichester in 1075. The cathedral is Chichester Cathedral and the diocesan bishop is the Bishop of Chichester. The diocese is in the Province of Canterbury.