The Dharug or Darug people, are a nation of Aboriginal Australian clans, who share ties of kinship, country and culture. In pre-colonial times, they lived as hunters in the region of current day Sydney. The Darug speak one of two dialects of the Dharug language related to their coastal or inland groups. There was armed conflict between the Dharug and the English settlers in the first half of the 19th century. Controversy over land rights, deference to culture and official return of Dharug artifacts, such as the skull of the warrior Pemulwuy, were a main cause of such conflict.

Dharug country covers an area of approximately 6,000 km² (2,300 square miles). In the north, it reaches the Hawkesbury River and its mouth at Broken Bay, creating a border with the Awabakal. To the northwest, the Dharug country extends to the town of Mount Victoria in the Blue Mountains meeting the Darkinjung. To the west, Wiradjuri country begins at the eastern fringe of the Blue Mountains. To the southwest, in the Southern Highlands, is the border with Gandangara country. In the southeast, in the Illawarra area is the border with the traditional Tharawal lands. The Dharug traditional country includes the areas around Campbelltown, Liverpool, Camden, Penrith and Windsor.

The Dharug language, has two dialects; one inland and one coastal, with the coastal dialect also known as Eora.

The word myall, now a pejorative word in Australian English denoting any Aboriginal person who keeps a traditional way of life, originated in the Dharug language. In Dharug, the word mayal means anyone from another clan or country.

The two dialects are associated with the activities of the inland (paiendra or "tool people") and the coastal (katungal or "sea people") people, respectively. Traditionally, the paiendra hunted kangaroos, emus and other land animals, and used stone axes more extensively than the katungal. The katungal built canoes, harvesting primarily seafood diet, including fish and shellfish from Sydney Harbour, Botany Bay and their associated rivers.

The clans of the Dharug nation can be divided into two broad groups based upon their language dialect: the inland Dharug, and the coastal Dharug (also known as Eora). Each of these clans and their descendant clans consisted of approximately 50 to 400 individuals resident to their own particular geographic area. James Kohen, academic and expert witness for the Dharug people, describes 15 clans while others describe 29 individual clans.

Between 1794 and about 1830, the Hawkesbury River area was a place of conflict between Dharug people and the more than 400 British settlers in the region. The farms created by the settlers disrupted access to the river and the gathering of food by the Dharug. Dharug who took crops from the farms were killed, for example, by gibbeting or hanging, by the settlers. The Dharug burned the farmers' crops in retaliation. In 1795, as the level of conflict escalated, government troops were sent to protect the settlers. In 1801, Governor King ordered troops to patrol farms on the Georges River and to shoot any Dharug on sight. In 1816, Governor Macquarie forbade Aboriginals to carry any weapons within two kilometres of a house or a town or to congregate in groups bigger than six. He also authorised settlers to establish vigilante groups and the addition of three new military outposts.

A group led by Pemulwuy, a Dharug warrior, raided Parramatta, where he was severely wounded and then fled. His group was accused of killing four settlers and of raping women. The government issued orders for his capture, dead or alive. He was shot and killed by two settlers in 1802. His head was severed, pickled and dispatched by King to Sir Joseph Banks. Although William, Prince of Wales advised he would return Pemulwuy's remains, in 2010, the skull had not been located.