Lac-Matapédia () is an unorganized territory in the Bas-Saint-Laurent region of Quebec, Canada. It is named after and located on the northern shores of Lake Matapedia in the Matapédia Valley.
The territory is home to a small protected area, Lac-Matapédia Forest Refuge () that was established in 2008 to protect three populations of the calypso orchid (Calypso bulbosa), a plant designated as threatened or vulnerable in Quebec. A part of the remainder of the territory is being considered for the creation of a new provincial park.
Population trend:
Private dwellings occupied by usual residents: 8 (total dwellings: 18)
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