Sir Charles Fletcher Fletcher-Cooke QC MP (5 May 1914 – 24 February 2001) was a British politician and lawyer who served as the constitutional adviser to Sultan Hassanal Bolkiah.

Fletcher-Cooke was born into a professional London family, though one that was financially diminished because of his father's death from wounds received in the Gallipoli Campaign.

He served in the RNVR during World War II and was a legal advisor to the British Government at the Danube Conference in 1948.

His vigorous defence of his long-time friend Lord Denning, who had been labelled as "geriatric" by a Labour MP, was one of his last acts in the Commons.

[6] In February 1963, Fletcher-Cooke had to resign his role as a junior Home Office minister after an eighteen year old borstal boy named Anthony Turner was arrested for speeding in east London.