Dumfriesshire, Clydesdale and Tweeddale is a constituency of the British House of Commons, located in the south of Scotland, within the Dumfries and Galloway, South Lanarkshire and Scottish Borders council areas. It elects one Member of Parliament (MP) at least once every five years using the First-past-the-post system of voting. A mostly rural constituency, it takes in the towns of Annan, Biggar, Gretna, Langholm, Lockerbie, Moffat and Peebles.