Letton, a former village civil parish, is now part of the parish of Cranworth, in the Breckland district of Norfolk, England. The settlement is south-east from Shipdham and about 5 miles (8 km) south-west from East Dereham. In 1931 the parish had a population of 83. On 1 April 1935 the parish was abolished and merged with Cranworth.