is a small Cree community located on the shores of Lake Champion, in Quebec, Canada.

The settlement was abandoned in the mid-1970s when Hydro-Québec proposed hydro-electric development on the Rupert River, which would have resulted in the flooding of the area.

The nearby Hydro-Québec electrical substation and airport, both called Nemiscau, create confusion as to the town's name.

Nemaska is accessible by air (from Hydro-Québec's Nemiscau Airport) and by car over the gravel North Road (Route du Nord).

About 14 km (8.7 mi) east from the village is the huge Hydro-Québec substation of Nemiscau.