The Scottish Parliament (Scottish Gaelic: Pàrlamaid na h-Alba; Scots: The Scots Pairliament) is the devolved national, unicameral legislature of Scotland, located in the Holyrood area of the capital, Edinburgh. The Parliament, informally referred to as "Holyrood", is a democratically elected body comprising 129 members known as Members of the Scottish Parliament (MSPs). Members are elected for four-year terms under the mixed member proportional representation system. As a result, 73 MSPs represent individual geographical constituencies elected by the plurality ("first past the post") system, with a further 56 returned from eight additional member regions, each electing seven MSPs. The most recent general election to the Parliament was held on 5 May 2011.

The original Parliament of Scotland (or "Estates of Scotland") was the national legislature of the independent Kingdom of Scotland, and existed from the early 13th century until the Kingdom of Scotland merged with the Kingdom of England under the Acts of Union 1707 to form the Kingdom of Great Britain. As a consequence, the Parliament of Scotland merged with the Parliament of England to form the Parliament of Great Britain, which sat at Westminster in London.