The consorts of the monarchs of Scotland, such as queens consort, princesses consort, and kings consort, bore titles derived from their marriage. The Kingdom of Scotland was first unified as a state by Kenneth I of Scotland in 843, and ceased to exist as an independent kingdom after the Act of Union 1707 when it was merged with the Kingdom of England to become the Kingdom of Great Britain.
The early history of Scotland is confused and often obscure, due largely to information given by the sources of the time and after, which are often contradictory, vague, and lacking in detail. Details of the kings prior to Malcolm III are sparse, and the status of two – Giric and Eochaid – dubious; details of their wives are almost non-existent. Thus, it is practically impossible to construct a list of consorts of Scotland prior to the accession of Macbeth, whose wife Gruoch is well-documented.