Sir Patrick McCarthy O'Connor, PC (28 December 1914 – 3 May 2001) was a British judge, who was a Lord Justice of Appeal between 1980 and 1989.
He was sent back to England and was educated at Downside School and Merton College, Oxford (honorary fellow, 1987), where he read History.
He had originally intended to join the Diplomatic Service or the Royal Navy, but was turned down by both on medical grounds.
In 1966, O'Connor was appointed a Justice of the High Court and assigned to the Queen's Bench Division, receiving the customary knighthood.
In 1967, he sentenced the gangster Charles Richardson to 12 years' imprisonment for conspiracy to pervert the course of justice.