Vice-Admiral James William Rivett-Carnac CB CBE DSC DL (12 February 1891 – 9 October 1970) was a Royal Navy officer who became Commodore commanding the New Zealand Division.

[2] Rivett-Carnac became Commodore commanding the New Zealand Division in December 1938.

[3] He also served in the Second World War as Director of Training and Staff Duties at the Admiralty from April 1940 and as Commanding Officer of the battleship HMS Rodney from 1941 before becoming rear-admiral in charge of the Normandy beaches during the Operation Overlord, the Allied invasion of Europe, in 1944.

[3][4] In March 1945 he was appointed Rear-Admiral Q, British Pacific Fleet until June 1945, then made acting Vice-Admiral with the new title of Vice-Admiral, Q British Pacific Fleet.

[1] In retirement he lived in Bury St Edmunds and became Deputy Lieutenant of Suffolk.