The Obatogamau lakes constitute a group of freshwater bodies of the territory of Eeyou Istchee Baie-James, in the administrative region of Nord-du-Québec, in the province of Quebec, at Canada.

The surface of Obatogamau Lakes is usually frozen from early November to mid-May, however safe ice movement is generally from mid-November to mid-April.

Of Cree origin, the term obatogamau means "lake with multiple straits or constricted by wood, vegetation".

In 1910, the Hudson's Bay Company built on the eastern shore of Lake La Dauversière a cabin that will become over the years a place of storage.

[2] The name "Lacs Obatogamau" was officialized on December 5, 1968 by the Commission de toponymie du Québec when it was created.