Port Mahon Dockyard was a Royal Navy Dockyard located at Port Mahon, Menorca, Spain. It was opened in 1708 and in 1802 the port was ceded back to Spain. However a resident commissioner of the Royal Navy was still appointed as late as 1814. The dockyard was administered by the Navy Board and was part of the Mediterranean Fleet.
The British Mediterranean Fleet, also known as the Mediterranean Station, was a formation of the Royal Navy. The Fleet was one of the most prestigious commands in the navy for the majority of its history, defending the vital sea link between the United Kingdom and India. General at Sea Robert Blake was appointed as the first commander in September 1654. The Fleet was in existence until 1967.
The fleet's shore headquarters was initially based at Port Mahon Dockyard, Minorca for most of the eighteenth century. It rotated between Gibraltar and Malta from 1791 to 1812. From 1813 to July 1939 it was permanently at Malta Dockyard. In August 1939 the C-in-C Mediterranean Fleet moved his flag afloat on board HMS Warspite until April 1940. He was then back onshore at Malta until February 1941. He transferred it again to HMS Warspite until July 1942. In August 1942 headquarters were moved to Alexandria where they remained from June 1940 to February 1943. HQ was changed again but this time in rotation between Algiers and Taranto until June 1944. It then moved back to Malta until it was abolished in 1967.