For the municipality in Quebec, see Adstock, Quebec Adstock is a village and civil parish about 2.5 miles (4.0 km) northwest of Winslow and 3 miles (4.8 km) southeast of Buckingham in the Aylesbury Vale district of Buckinghamshire.

At the end of the 10th century, Adstock formed a portion of the Lands of Godwine, Earl of Kent and his second wife Gytha Thorkelsdóttir.

After the Norman conquest of England, its name was recorded in the Domesday Book of 1086 as Edestoche which is Old English and means Eadda's Farm.

This was due to the majority of the people from the two local towns of Winslow and Buckingham being infected with bubonic plague.

There are two bells (the lightest of which dates back from about 1440) in the church and one Sanctus Adstock had an outstation from the Bletchley Park codebreaking establishment, where some of the Bombes used to decode German Enigma messages in World War Two were located.