The United Kingdom Naval Support Facility (UKNSF) is a Royal Navy (RN) base established in Bahrain on 13 April 1935, originally known as HMS Jufair, as part of the port at Mina Salman.

[2] On 5 April 2018, the UK Naval Support Facility was officially opened by the Crown Prince of Bahrain, Salman bin Hamad Al Khalifa and The Duke of York, representing the United Kingdom.

Post-World War II, the posting was recognised as the U.S. Middle East Force from 1948, a small shore facility that provided logistical and communications support to Marine Expeditionary vessels.

With agreement of the Emir, the USN immediately took on the entire 10 acres (40,000 square metres) site,[1] and eight years later the base was named Administrative Support Unit (ASU) Bahrain.

[12] UKNSF is the home port for ships deployed as part of Operation Kipion, which is the UK's primary military effort in support of peacekeeping and maritime security in the Gulf region, as well as ensuring the safe flow of oil and trade.

[17] Initially, the quayside at UKNSF was only accessible to the small mine countermeasures vessels assigned to the base, with larger ships having to be moored at other piers within the Mina Salman port area.