The Riddell baronetcy, of Ardnamurchan in the County of Argyll, was created in the Baronetage of Great Britain on 2 September 1778 for James Riddell. He was superintendent general to the Society of British Fishery and a Fellow of the Society of Arts.
The 4th Baronet was a soldier who took part in the New Zealand Wars from 1863 to 1865, and the Second Anglo-Afghan War. He died in 1907, and the title became extinct.