The Little Madawaska River is a river in the Saint Lawrence River drainage basin in the Unorganized South Part of Nipissing District in northeastern Ontario, Canada.

The river begins at Lake La Muir in the geographic township Freswick Township and flows northeast to Hogan Lake.

It continues northeast from the lake controlled by a small dam to Phillip Lake, from which it also continues to flow northeast controlled by a dam.

The river then empties into Radiant Lake on the Petawawa River in Deacon Township, near the unincorporated place of Odenback.

This article related to a river in Northern Ontario, Canada is a stub.