Old Government House is a former "country" residence used by 10 early governors of New South Wales between 1800 and 1847, located in Parramatta Park in Parramatta, New South Wales, now a suburb of Sydney. It is considered a property of national and international significance as an archaeological resource. It also serves to demonstrate how the British Empire expanded and Australian society has evolved since 1788.
In July 2010 Old Government House and Domain was inscribed on the World Heritage List as one of 11 Australian sites with a significant association with convict transportation which together represent "the best surviving examples of large-scale convict transportation and the colonial expansion of European powers through the presence and labour of convicts"
The land the property is situated on is named Darug land, home to the Burramatta tribe. There is evidence of Aboriginal occupation on the site, such as middens.