Sir John Robertson was a London-born Australian politician and Premier of New South Wales on five occasions. Robertson is best remembered for land reform and in particular the Robertson Land Acts of 1861, which sought to open up the selection of Crown land and break the monopoly of the squatters.

The premier of New South Wales is the head of government in the state of New South Wales, Australia. The Government of New South Wales follows the Westminster Parliamentary System, with a Parliament of New South Wales acting as the legislature. The premier is appointed by the Governor of New South Wales, and by modern convention holds office by their ability to command the support of a majority of members of the lower house of Parliament, the Legislative Assembly.