Teignmouth is a town on the north bank of the estuary mouth of the River Teign in the Teignbridge district of south Devon, England.

In 1690, it was the last place in England to be invaded by a foreign power.

The town grew from a fishing port associated with the Newfoundland cod industry to a fashionable resort of some note in Georgian times, with further expansion after the opening of the South Devon Railway in 1846. Today, its port still operates and the town remains a popular seaside holiday location.

The port of Teignmouth, in existence since the 13th century, is still active as of 2008, mostly handling clay, timber and grain.

The original Shaldon bridge was owned by the Teignmouth and Shaldon Bridge Company and opened on 8 June 1827.It had 34 wooden arches and was 1,671 feet long with a swing bridge at the Teignmouth end to allow sailing ships to pass up the estuary. It had abutment walls of a considerable length at either end. It was the longest wooden bridge in England when built, at nearly a third of a mile long, and its original toll house survives.