The Joint Helicopter Support Squadron (JHSS) is a joint organisation of the British Army and the Royal Air Force, located at RAF Benson in Oxfordshire.

Following the introduction of the Boeing Chinook HC.1, the unit was formed in July 1982 during the Falklands War as the Joint Helicopter Support Unit (JHSU).

[1] In September 2009, the unit became the Joint Helicopter Support Squadron (JHSS) following its merger with the RAF's Mobile Air Operations Team (MAOT).

[3] The squadron is tasked with providing a ground support capability to Joint Aviation Command's support helicopter force, including specialist skills in under-slung load operations and preparation of landing sites.

[4] It has two teams on very high readiness which are able to contribute to contingent operations at short notice, such as natural disaster relief.