Indigenous peoples of the Northeastern Woodlands include Native Americans and First Nations residing in or originating from a cultural area encompassing the northeastern and Midwest United States and southeastern Canada. It is part of a broader grouping known as the Eastern Woodlands. The Northeastern Woodlands is divided into three major areas: the Coastal, Saint Lawrence Lowlands, and Great Lakes-Riverine zones.
The Coastal area includes the Atlantic Provinces in Canada, the Atlantic seaboard of the United States, south until North Carolina. The Saint Lawrence Lowlands area includes parts of Southern Ontario, upstate New York, much of the Saint Lawrence River area, and Susquehanna Valley. The Great Lakes-Riverine area includes the remaining inland areas of the northeast, home to Central Algonquian and Siouan speakers.