Powderham is a former manor on the coast of south Devon, England, situated within the historic hundred of Exminster, about 6 miles (9.7 km) south of the city of Exeter and adjacent to the north-east of the village of Kenton. It consists in part of flat, formerly marshy ground on the west bank of the River Exe estuary where it is joined by its tributary the , the site of Powderham Castle, originally the fortified manor house of Powderham. On the opposite side of the Exe is the small village of Lympstone and almost opposite is Nutwell Court in the parish of Woodbury, formerly the castle or fortified manor house of the powerful mediaeval Dynham family.