Midlothian South, Tweeddale and Lauderdale

Following the second periodic review of Scottish Parliament boundaries in 2025, the other nine constituencies of the South Scotland region are: Ayr; Carrick, Cumnock and Doon Valley; Clydesdale; Dumfriesshire; East Kilbride; Ettrick, Roxburgh and Berwickshire; Galloway and West Dumfries; Hamilton, Larkhall and Stonehouse; and Kilmarnock and Irvine Valley. By population it is now the largest of Scotland's eight electoral regions. Prior to the 2025 review, there were nine constituencies in the South Scotland region. Besides Ettrick, Roxburgh and Berwickshire, the other eight constituencies were: Ayr; Carrick, Cumnock and Doon Valley; Clydesdale; Dumfriesshire; East Lothian; Ettrick, Roxburgh and Berwickshire; Galloway and West Dumfries; and Kilmarnock and Irvine Valley. The region covered the Dumfries and Galloway, East Ayrshire, Scottish Borders and South Ayrshire council areas in full and parts of the East Lothian, Midlothian and South Lanarkshire council areas. Midlothian North, which covers the rest of Midlothian, is part of the Edinburgh and Lothians East region. == Constituency boundaries and council area ==

Midlothian South, Tweeddale and Lauderdale was created by the First Periodic Review of Scottish Parliament Boundaries ahead of the 2011 election from parts of the former constituencies of Midlothian and Tweeddale, Ettrick and Lauderdale. Following the Second Periodic Review in 2025, the boundary with Midlothian North was amended to move Newtongrange into Midlothian North. The electoral wards of Scottish Borders Council and Midlothian Council used in the current creation of Midlothian South, Tweeddale and Lauderdale are: • Scottish Borders: • Tweeddale East (entire ward) • Tweeddale West (entire ward) • Galashiels and District (entire ward) • Leaderdale and Melrose (entire ward) • Midlothian: • Penicuik (entire ward) • Midlothian South (shared with Midlothian North) • Midlothian West (shared with Midlothian North) ==Members of the Scottish Parliament==