Sir Donald Henry Farquharson, PC, DL (26 February 1928 – 21 August 2011) was a British barrister judge, who served as a High Court Judge and as a Lord Justice of Appeal.
The younger son of a civil engineer who died prematurely because of wounds sustained during the First World War, Farquharson was educated at the Royal Commercial Travellers School before studying at Keble College, Oxford, where he read law.
Described as "one of the outstanding criminal barristers of his generation", he mostly acted as prosecutor and was involved in many high-profile trials.
Notably, he prosecuted Cynthia Payne, the "Streatham madam" who was convicted of keeping a brothel.
[1] He was appointed Deputy Chairman of the Essex Quarter Sessions in 1970, and took silk in 1972.