RAF Masirah (or Royal Air Force Masirah), was an airfield located on the northern tip of Masirah Island, Oman. The base was built during 1943 as a staging post for flights between Aden and India, its most important function being that of a refuelling point. The base was also used for anti-submarine patrols during the Second World War, and was the last permanently staffed RAF base in the Gulf region from the Second World War, closing in March 1977.