Sir Charles Edmonstone, 2nd Baronet (10 October 1764 – 1 April 1821), also 12th of Duntreath, was a Scottish politician. Edmonstone was the third son of Sir Archibald Edmonstone, 1st Baronet. He was educated at Eton College and subsequently at Christ Church, Oxford. Having been called to the Bar, he was one of the six clerks in Chancery until the time of his father's death. In 1806, he was elected Member for Dumbartonshire, but he lost his seat in the general election of the following year. In 1812, he became member of parliament for Stirlingshire and held the seat until his death. A Tory like his father, he supported Lord Liverpool's government during the later part of the Napoleonic Wars.