Charles Arnold Walker (13 October 2000 – 9 November 2019), for cultural reasons known as Kumanjayi Walker since his death, was a Warlpiri man who was shot and killed by police while resisting arrest in the remote Aboriginal Australian community of Yuendumu, Northern Territory in November 2019. Walker stabbed Constable Zachary Rolfe with a pair of scissors. Rolfe subsequently fatally shot him and was charged with murder three days later, but was acquitted in March 2022. Thousands of people rallied in Alice Springs in the days following the attempted arrest, and further protests followed in capital cities around Australia. After the acquittal of Rolfe a campaign entitled "Justice for Walker" has continued.