Known as Kidituna in the Domesday Book (1086), there were 280 people living there at that time.
Kedington's church, St Peter and St Paul, is one of the historical treasures of East Anglia, dating from the late 13th century. Kedington comes in the top rank of small English churches and is renowned for its unmodernised interior and Barnardiston tombs. John Betjeman understandably christened Kedington ' a village Westminster Abbey'. The 17th century Archbishop of CanterburyJohn Tillotson was rector of Kedington prior to his elevation.