Máel Coluim, son of the king of the Cumbrians

Máel Coluim (fl. 1054) was an eleventh-century magnate who seems to have been established as either King of Alba or King of Strathclyde. In 1055, Siward, Earl of Northumbria defeated Mac Bethad mac Findlaích, the reigning ruler of the Kingdom of Alba. As a result of this military success against the Scots, several sources assert that Siward established Máel Coluim as king. It is uncertain whether this concerned the kingship of Alba or the kingship of Strathclyde.

The fact that Máel Coluim is described as the son of a "King of the Cumbrians" suggests that he was a member of the Cumbrian royal dynasty of Strathclyde, and could indicate that he was a close relative of Owain Foel, King of Strathclyde, the last known King of Strathclyde. Máel Coluim's Gaelic personal name could indicate that he was maternally descended from the royal Alpínid dynasty of Alba, which would have in turn endowed him with a claim to the Scottish throne.

Máel Coluim's fate is unknown. The fact that Siward died in 1055, and Mac Bethad retained authority in Alba, suggests that Máel Coluim was quickly overcome. There is evidence indicating that the southern reaches of the Kingdom of Strathclyde—the territories upon the Solway Plain—fell into the hands of the English during Siward's floruit. The more northerly lands of the realm seem to have been conquered by Máel Coluim mac Donnchada, King of Alba sometime between 1058 and 1070, and it is uncertain whether an independent Kingdom of Strathclyde still existed by the time of this conquest. In any event, Máel Coluim appears to be the last member of the Cumbrian royal dynasty on record.