St Alfege Church is a Church of England place of worship in the town centre of Greenwich in the London Borough of Greenwich. Of medieval origin, the church was rebuilt in 1712-14 to the designs of Nicholas Hawksmoor.
The church is dedicated to, and reputedly marks the place where Alfege (also spelt 'Alphege'), Archbishop of Canterbury, was killed by Viking raiders on 19 April 1012.
The second church built on this site was constructed around 1290. It was here that Henry VIII was baptised in 1491.
During a storm in 1710 the medieval church collapsed, having had its foundation weakened by burials both inside and outside.
Its replacement was built with a grant from the Commission for Building Fifty New Churches, to the designs of Nicholas Hawksmoor, one of the commission's two surveyors. The first church to be built by the commissioners, it was begun in 1712, and basic construction was completed in 1714; it was not, however, consecrated until 1718.