St Andrew's Church is the parish church of Alfriston, East Sussex, England. This Grade I listed building was built in the 1370s and is also known as the 'Cathedral of the Downs'. It sits on a small, flint-walled mound, indicating that it was the site of a pre-Christian place of worship, in the middle of 'the Tye' (the local village green), overlooking the River Cuckmere, and is surrounded by the flowered graveyard.