Dalkeith is a town in Midlothian, Scotland, on the River Esk. It was granted a burgh of barony in 1401 and a burgh of regality in 1540. The settlement of Dalkeith grew southwestwards from its 12th-century castle . Dalkeith has a population of 12,342 people according to the 2011 census.

Princess Joan Stewart, Countess of Morton, also called Joanna, was the daughter of James I, King of Scotland, and the wife of James Douglas, 1st Earl of Morton. She was known, in Latin, as the muta domina [mute lady] of Dalkeith.