Richard Du Cann QC (27 January 1929 - 4 August 1994) was a British barrister and judge. He worked as a criminal lawyer in defence and prosecution and later became a recorder (judge) in the Crown Court. Du Cann was involved with several significant cases such as the Lady Chatterley's Lover obscenity trial, one of the inquests into the death of Roberto Calvi, the Blue Arrow fraud trial and the trial of John Stonehouse MP for charges relating to his attempt to fake his own death. Du Cann also wrote a book, The Art of the Advocate, for the instruction of law students.