Sir John Wedderburn, 5th Baronet of Blackness, (1704–1746) was a Perthshire gentleman who joined the 1745 rebellion of Charles Edward Stuart.

He raised his family in "a small farm with a thatched house and a clay floor, which he occupied with great industry, and thereby made a laborious but starving shift to support nine children who used to run about in the fields barefoot".

[6] In 1745 Sir John joined the rebellion of Charles Edward Stuart against the Hanoverian Crown,[7] serving as a colonel in the Jacobite army.

[7] He was indicted for treason at St Margaret's Hill, Southwark on 4 November 1746, and was found guilty, despite arguing in his defence that he had not personally taken up arms against the Crown.

[6] According to the genealogist Joseph Foster, Sir John married in 1724 Jean Fullerton, who lived till 1766.