The Honourable Judge Marion Buller (also known as Marion Buller Bennett) is a First Nations jurist in British Columbia, serving as the Chief Commissioner for the National Inquiry into Missing and Murdered Indigenous Women and Girls. A member of the Mistawasis First Nation, she was the first First Nations woman to be appointed to the Provincial Court of British Columbia and presided in courts throughout B.C. She was instrumental in establishing the First Nations Courts of British Columbia in 2006 and the Aboriginal Family Healing Court in 2016. Buller served as both Director and President of the Indigenous Bar Association and served as Director of the B.C. Law Court Society, B.C. Law Foundation, B.C. Police Commission and the B.C. Mediators Roster. She also was the Commission Counsel for the Caribou-Chilcotin Justice Inquiry and published reports and articles dealing with Aboriginal rights and legal services for First Nations in BC.

Marion Buller was appointed the first woman First Nations judge in British Columbia in 1994 and was appointed as chief commissioner for the National Inquiry into Missing and Murdered Indigenous Women and Girls in 2016. Prior to being appointed to the Provincial Court bench, Judge Buller worked as a civil and criminal lawyer. Buller has lectured and written numerous articles and papers about aboriginal law, criminal law, family law and human rights.

Judge Buller is currently resident in Port Coquitlam, British Columbia, where she sits on the Provincial Court Bench, but maintains band membership with the Mistawasis First Nation in Saskatchewan. In 2012, she was given the University of Victoria Faculty of Social Science Distinguished Alumni Award. In 2016, Maclean’s listed her as one of six people who might be especially influential on policy in the Trudeau government. She retired from the Provincial Court on August 31, 2016 in order to lead the National Inquiry into Missing and Murdered Indigenous Women and Girls.