Admiral of the Fleet Edward Russell, 1st Earl of Orford, PC was a Royal Navy officer and politician. After serving as a junior officer at the Battle of Solebay during the Third Anglo-Dutch War, he served as a captain in the Mediterranean Sea in operations against the Barbary pirates.

Admiral of the Fleet is a five-star naval officer rank and the highest rank of the Royal Navy, formally established in 1688. The five-star NATO rank code is OF-10, equivalent to a field marshal in the British Army or a Marshal of the Royal Air Force. Apart from honorary appointments, no new admirals of the fleet have been named since 1995, and no honorary appointments have been made since 2014.