Joint Defence Facility Nurrungar (JDFN) was an Earth station in Australia located on the edge of Island Lagoon, approximately 15 km south of Woomera, South Australia, operated jointly by the Australian Department of Defence and the United States Air Force from 1969 through to 1999.

Its official area of emphasis was space-based surveillance, in particular the early detection of missile launches and nuclear detonations using U.S. Defense Support Program satellites in geostationary orbits.

Leaked Department of Defence documents have revealed that satellites controlled by the Pine Gap and Nurrungar facilities were used to pinpoint targets for bombings in Cambodia.

[6] After September 1999 its operations were moved to the Joint Defense Facility Pine Gap, near Alice Springs, and ownership of the premises was transferred to the Woomera Test Range (headquartered in Adelaide).

The radome still has the old satellite dish inside but it is believed all the operating mechanisms have long since been stripped out and sold for scrap.