Viscount Exmouth, of Canonteign in the County of Devon, is a title in the Peerage of the United Kingdom.

Canonteign is an historic tything in the parish of Christow, near Chudleigh, in South Devon, England and situated in the valley of the River Teign. The 'canon' in the name refers to the Augustinian canons regular, either of St Mary du Val in Normandy or of Merton Priory, which owned it for several centuries. It is best known today for the Canonteign Falls waterfall. Canonteign today contains three significant houses: the original Grade I listed 16th-century manor house, the ancient barton house situated nearby behind a granite wall, and a new mansion house built by the Pellew family in the early 19th century nearby, to which that family moved their residence thereby abandoning the old manor house.