Totnes is a parliamentary constituency^{[n 1]} in Devon represented in the House of Commons of the UK Parliament since December 2019 by Anthony Mangnall, a Conservative. Mangnall defeated incumbent Sarah Wollaston who had originally been elected as a Conservative but defected to the Liberal Democrats earlier that year.^{[n 2]}

Under the 2023 Periodic Review of Westminster constituencies, the constituency will only be subject to minor boundary changes, but is to be renamed South Devon - to be first contested at the next general election.^[3]

The current constituency was formed for the 1997 general election, from parts of the former South Hams constituency. This had, in 1983, largely replaced the previous Totnes constituency, which had existed in a wide form since 1885, but in a much narrower form from the Model Parliament.

An original parliamentary borough of Totnes or Totness^[4] had been created in 1295. It returned two MPs to the House of Commons of England until 1707, then to the House of Commons of Great Britain until 1800, and finally to the House of Commons of the United Kingdom from 1801 until it was abolished under the Representation of the People Act 1867 with effect from the 1868 election.

1885–1918: The Municipal Borough of Totnes, and the Sessional Divisions of Ermington and Plympton, and Stanborough and Coleridge.

1918–1950: The Municipal Borough of Totnes, the Urban Districts of Ashburton, Buckfastleigh, Kingsbridge, Newton Abbot, Salcombe, and Teignmouth, the Rural District of Kingsbridge, and parts of the Rural Districts of Newton Abbot and Totnes.

1950–1974: The Municipal Boroughs of Clifton, Dartmouth, Hardness, and Totnes, the Urban Districts of Ashburton, Buckfastleigh, Kingsbridge, Newton Abbot, and Salcombe, the Rural Districts of Kingsbridge and Newton Abbot, and part of the Rural District of Totnes.

1974–1983: The Municipal Boroughs of Clifton, Dartmouth, Hardness, and Totnes, the Urban Districts of Ashburton, Buckfastleigh, Kingsbridge, Newton Abbot, and Salcombe, and the Rural Districts of Kingsbridge, Newton Abbot, and Totnes.

1997–2010: The District of South Hams wards of Avon and Harbourne, Avonleigh, Dartington, Dartmouth Clifton, Dartmouth Hardness, Dart Valley, Eastmoor, Garabrook, Kingsbridge, Kingswear, Malborough, Marldon, Salcombe, Saltstone, Skerries, South Brent, Stoke Gabriel, Stokenham, Thurlestone, Totnes, Totnes Bridgetown, and West Dart, the Borough of Torbay wards of Blatchcombe, Furzeham with Churston, and St Peter's with St Mary's, and the District of Teignbridge wards of Ambrook, Ashburton, and Buckfastleigh.

2010–present: The District of South Hams wards of Allington and Loddiswell, Avon and Harbourne, Dartington, Dartmouth and Kingswear, Dartmouth Townstal, East Dart, Eastmoor, Kingsbridge East, Kingsbridge North, Marldon, Salcombe and Malborough, Saltstone, Skerries, South Brent, Stokenham, Thurlestone, Totnes Bridgetown, Totnes Town, West Dart, and Westville and Alvington, and the Borough of Torbay wards of Berry Head with Furzeham, Blatchcombe, Churston with Galmpton, and St Mary's with Summercombe.

The Totnes constituency covers the eastern part of the South Hams district of Devon, including the towns of Totnes, Dartmouth, Kingsbridge and Salcombe, as well as parts of the unitary authority of Torbay, including the town of Brixham.

This section needs to be updated. (February 2022)

The seat covers the undulating Totnes area in south Devon, which also includes the towns of Brixham, South, and Western Paignton which is in Torbay. Workless claimants, registered jobseekers, were in November 2012 significantly lower than the national average of 3.8%, at 2.4% of the population based on a statistical compilation by The Guardian.^[5]

• List of parliamentary constituencies in Devon