Radisson is a small unconstituted locality situated near the Robert-Bourassa hydroelectric power station on the La Grande River in the municipality of Eeyou Istchee Baie-James of Quebec, Canada.

Geographically, Radisson is located halfway between the southern and northernmost points in Quebec and is, besides Schefferville, the only non-native town north of the 53rd parallel in this province.

[5] Despite its remoteness, Radisson has plenty of services for its residents and travellers: two fuel stations, hotel, motel, campground (summer only), a general store, restaurants, gift shops, a school and a hospital.

It is also home to a huge Hydro-Québec employee facility, from where guided tours to the Robert-Bourassa power station start.

Radisson, also referred to on some unofficial maps as "La Grande", is part of the Municipality of Baie-James which covers most of the territory of James Bay region, with the exception of the Cree villages as well as towns of Chapais, Chibougamau, Matagami and Lebel-sur-Quévillon, all of which are enclaves.