Lasswade is a village and civil parish in Midlothian, Scotland, on the River North Esk, nine miles south of Edinburgh city centre, contiguous with Bonnyrigg and between Dalkeith to the east and Loanhead to the west. Melville Castle lies to the north east. The Gaelic form is Leas Bhaid, meaning the "clump at the fort."

Midlothian is a historic county, registration county, lieutenancy area and one of 32 council areas of Scotland used for local government. Midlothian lies in the east-central Lowlands, bordering the City of Edinburgh council area, East Lothian and the Scottish Borders.