There are three major indigenous groups in Canada:
First Nations people refers to status and non-status "Indian" peoples in Canada. There are 617 First Nation communities in Canada, comprising 50 nations and 50 aboriginal languages. There are over 700,000 First Nations people in Canada.
You can see where First Nations communities are located on this interactive map from the Government of Canada.
The Inuit are the Indigenous peoples of the arctic. "Inuit" means "the people" in their language of "Inuktitut." There are almost 44,000 Inuit in Canada, with the majority living in Nunavut, the most northerly area in Canada.
Métis are people of mixed First Nations and Euro-American ancestry; they have their own culture and communities. There are almost 420,000 Métis people in Canada, with over 90,000 living in Alberta.