The Yidinji people, otherwise known as the Yidiñ, are an indigenous Australian tribal group in Far North Queensland. Members of the tribe traditionally spoke the Yidiny language.
The last fluent speakers of Yidiny were Tilly Fuller (d. October 1974), George Davis (b.1919), Dick Moses (b.1898) and his sister Idea Burnett of White Rock.
The Yidinji lands stretched from Yarrabah down to the south, where their borders met those of the Ngajanji and the Wanyurr. To their north were the coastal Djabugay people.
The Yidinji, along with many other tribal people in the tropical rainforest areas from Cairns to Ingham, and the Atherton Tableland were cleared off their land to enable the establishment of cattle stations and sugar cane plantations. Jack Kane participated in some massacres as a youth and recalled, in 1938 one episode alone in 1884, during a week long campaign to round up the tribes, Queensland police and native troopers, encircled a Yidinji camp at what became known as Skull Pocket, several miles north of Yungaburra. At dawn, a shot was fired from one side into the camp to make them scatter, and then as they rushed into the ambushing forces elsewhere, were shot down. The native police then stabbed or smashed the brains of the children.
Starting around 1910, even those who remained in the area of white settlement were the object of a Queensland government policy of shifting them into the Anglican mission at Yarrabah on the Cape Grafton peninsula. As each tribe was weakened by dispersal and fragmentation, the elders formed a counter plan in the 1920s to organize themselves into a more viable political unit, in the shape of a macro-tribe, but the merger failed to take hold, given the notable linguistic differences between groups.
In 2014, 40 members of the Yidinji tribe, led by Murrumu Walubara Yidindji (formerly Jeremy Geia) renounced legal ties with Australia to form the Sovereign Yidindji Government, claiming sovereignty over the lands from south of Port Douglas to Cairns and the Atherton Tablelands, including territorial waters reaching eastwards 80km in the Pacific. The government thus formed presented itself as similar to that of Vatican City. Indigenous activist and Professor of Law Megan Davis commented that there were no legal problems in the Australian government entering into a treaty with such groups. The issues were purely political, in her view. She likened the project to that of the scenario in the film Field of Dreams, stating that what you imagine can take on its own reality.