Stoborough (/ˈstoʊbərə/) is a village in the English county of Dorset. It is situated one mile to the south of the town of Wareham, and separated from it by the River Frome. Stoborough and nearby Stoborough Green form part of the civil parish of Arne. Stoborough is a liberty, in the parish of the Holy Trinity, next to the borough of Wareham, and is ¾ of a mile South of Wareham. It has been historically governed by a mayor and bailiff, chosen at Michaelmas; appointed by a jury at the Lord's manor court. Stoborough was reputed to be the settlement from which Wareham was founded.