The Cullin-la-ringo massacre, known historically as the Wills tragedy, was a massacre of white colonists by Indigenous people that occurred north of modern-day Springsure in Central Queensland, Australia on 17 October 1861. Nineteen men, women and children were killed in the attack, including Horatio Wills, owner of Cullin-la-ringo station. It is the single largest massacre of colonists by Aboriginal people in Australian history. In the weeks afterwards, police, native police and civilian posses carried out "one of the most lethal punitive expeditions in frontier history", hunting down and killing up to 370 members of the Gayiri Aboriginal tribe implicated in the massacre.