Thieves have caused thousands of pounds worth of damage after stripping lead from the roof of the church in East Farndon.
They targeted the porch area of St John The Baptist on Main Street, escaping with some of the lead and dumping another amount at the entrance.
A near-by resident was awoken by noise just after 2am on Saturday and saw two men in the church grounds.
Police were called but when officers arrived they had gone.
Anyone who may have seen suspicious vehicles in the village around the time should call Northants Police on 101.