The lac Saint-Henri is a freshwater body crossed by the Métabetchouane River, in the unorganized territory of Lac-Croche, in the La Jacques-Cartier Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.

Lac Saint-Henri is indirectly served by the route 155 (connecting La Tuque and Chambord).

A few secondary forest roads serve this area for the purposes of forestry and recreational tourism activities.

The surface of Lake Saint-Henri is usually frozen from the beginning of December to the end of March, however the safe circulation on the ice is generally made from mid-December to mid-March.

The Métabetchouane River crosses this lake for 6.1 kilometres (3.8 mi) to the north.