The church was ironically holding events to raise money for a toilet to be installed inside the building.
Saint Guthlac's Church in Passenham, just outside Milton Keynes, was holding two events to raise funds for a brand new toilet when a green portable toilet was stolen from the premisis.
The portable toilet was reportedly stolen between 13:32 on Wednesday 8th December and 07:45 on Thursday 9th December from Passenham Lane.
Since the toilet is hired, the church will need to pay for the portable toilet if not found and is needed for the events taking place.
Any witnesses are being told to contact Northamptonshire Police quoting 21000716175 or ring the churchwarden at 07950 426727.