Katherine Koostachin is a senior policy and legal professional who helps governments, industry, and Indigenous Nations deliver successful projects that are inclusive, sustainable, and built to last. A strategic thinker and problem solver, she ensures that Indigenous values, priorities, and participation are integrated from planning through execution, turning complex initiatives into tangible, results-driven outcomes. Her expertise spans lands and resources, energy, critical minerals, climate policy, and Indigenous Reconciliation.

Her career combines legal practice, senior advisory roles in federal politics, and frontline leadership in Indigenous engagement and consultation. Katherine has led and supported major initiatives by aligning government, industry, and Indigenous Nations to move projects from concept to reality. Known for bridging diverse interests and fostering trust, she is sought after for her ability to guide projects to success in some of Canada’s most challenging and high-stakes environments.

As Senior Advisor of Indigenous Policy and Litigation in the Prime Minister’s Office, she influenced Cabinet decisions, resolved historic grievances, and enabled transformative community infrastructure. She previously provided strategic Indigenous policy and regulatory advice to the Federal Ministers of Environment and Climate Change, Indigenous Services, and Natural Resources Canada, helping shape landmark legislation including the Impact Assessment Act, 2019 and the United Nations Declaration on the Rights of Indigenous Peoples Act, 2021.

A practicing lawyer specializing in Aboriginal law, energy, and environmental frameworks, Katherine emphasizes collaboration between economic development and environmental stewardship. She champions sustainable solutions that balance Indigenous rights, community priorities, and industry goals.

Katherine holds an LLB from the University of Ottawa Faculty of Law, an Aboriginal Intensive Certificate in Aboriginal Lands, Resources, and Governments from Osgoode Hall Law School, and a BA in Political Science from the University of British Columbia. A proud Mushkegowuk Cree from Attawapiskat First Nation, she lives in Ottawa with her family and draws inspiration from her traditional territory, advocating for a future where Indigenous Nations are full partners in shaping and benefiting from Canada’s economy while safeguarding the land for generations to come.