Autumn Peltier (born September 27, 2004) is an Anishinaabe Indigenous clean water advocate from the Wiikwemkoong First Nation on Manitoulin Island, Ontario, Canada. She is Chief Water Protector for the Anishnabek Nation and has been called a "water warrior". In 2018, at the age of thirteen, Peltier addressed world leaders at the UN General Assembly on the issue of water protection.