The Rivière des Îlets is a tributary of the southern bank of the upper part of the Rivière du Gouffre, flowing in the unorganized territory of Lac-Pikauba, in the Charlevoix Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.

The upper and middle parts of this valley are served by a few secondary forest roads which connect to the west with route 381.

The water level of the river varies with the seasons and the precipitation; the spring flood generally occurs in April.

The Îlets river rises from the Lac de la Haute Ville (length: 0.7 kilometres (0.43 mi); altitude: 949 metres (3,114 ft)) which is landlocked between mountains in a forest area.

The toponym "Rivière des Îlets" was formalized on December 5, 1968 at the Place Names Bank of the Commission de toponymie du Québec.