Scottish Parliamentary Constituencies and Regions define the electoral areas used to return members to the Scottish Parliament. There are 73 constituencies, each electing one Member of the Scottish Parliament (MSP), and 8 regional constituencies each electing an additional seven MSPs. The total number of parliamentary seats is 129. Boundaries Scotland is responsible for recommendations on the definition of constituency and region boundaries, however, the definitive dataset is delineated by Ordnance Survey for inclusion in their BoundaryLine product.
