At least 28 unarmed Indigenous Australians were massacred at Myall Creek, New South Wales.

Indigenous Australians are people with familial heritage from, or recognised membership of, the various ethnic groups living within the territory of contemporary Australia prior to British colonisation. They consist of two distinct groups, which include many ethnic groups: the Aboriginal Australians of the mainland and many islands, including Tasmania, and the Torres Strait Islanders of the seas between Queensland and Papua New Guinea, located in Melanesia. 812,728 people self-identified as being of Aboriginal and/or Torres Strait Islander origin in the 2021 Australian Census, representing 3.2% of the total population of Australia. Of these Indigenous Australians, 91.4% identified as Aboriginal, 4.2% identified as Torres Strait Islander, and 4.4% identified with both groups.

The Myall Creek massacre was the killing of at least 28 unarmed Aboriginal people in the Colony of New South Wales by eight colonists on 10 June 1838 at the Myall Creek in the north of the colony. Seven perpetrators were convicted of murder and hanged.

Myall Creek is a rural locality split between the local government areas of Inverell Shire and the Gwydir Shire in New South Wales, Australia. In the 2021 census, Myall Creek had a population of 27.