Ness of Brodgar is an archaeological site covering 2.5 hectares (6.2 acres) between the Ring of Brodgar and the Stones of Stenness in the Heart of Neolithic Orkney World Heritage Site near Loch of Harray, Orkney, in Scotland. Excavations at the site began in 2003. The site has provided evidence of housing, decorated stone slabs, a massive stone wall with foundations, and a large building described as a Neolithic "cathedral" or "palace". The site may have been occupied from as early as 3500 BC to the close of the Neolithic period more than a millennium and a half later.
According to project manager Nick Card, the discoveries are unparalleled in British prehistory, the complexity of finds is changing the "whole vision of what the landscape was 5,000 years ago" and that "it’s of a scale that almost relates to the classical period in the Mediterranean with walled enclosure and walled precincts". Additionally, according to archaeologists in general, the site could be more important than Stonehenge.