Admiral of the Fleet Sir Edward Beckwith Ashmore, GCB, DSC (11 December 1919 – 28 April 2016) was a senior Royal Navy officer. He saw active service in the Second World War and later commanded two frigates before achieving high command in the Navy. He served as First Sea Lord and Chief of the Naval Staff in the mid-1970s and in that role he advised the incoming Labour government on a major defence review and on the implications of the Turkish invasion of Cyprus. He went on to be Chief of the Defence Staff, serving briefly in a caretaker capacity following the death of his predecessor.