The Church of St Mary the Virgin, Iffley is a Church of England parish church in the village of Iffley, Oxfordshire, England, now absorbed as a suburb of the city of Oxford.

Iffley is a village in a designated conservation area in Oxfordshire, England. It lies within the boundaries of the city of Oxford, between Cowley and the estates of Rose Hill and Donnington, and in proximity to the River Thames (Isis). A notable feature is its largely unchanged Norman church, St Mary the Virgin, which has a modern stained glass Nativity window designed by John Piper and another window designed by Roger Wagner. The church is a Grade I listed building.