The Rivière Port-Daniel flows in the administrative region of Gaspésie–Îles-de-la-Madeleine, Quebec, Canada.

More specifically, this river crosses successively: The "Rivière Port-Daniel" is a tributary of the north shore of the barachois of the hamlet of "Rivière-Port-Daniel" which opens to the south in the bay of Port-Daniel, located on the north shore of the Chaleur Bay; the latter in turn opens eastward onto the Gulf of St. Lawrence.

This source of the river is located at: From its source, the "Rivière Port-Daniel" flows on 30.7 km (19.1 mi) towards the East, then the South-East, especially in forest and mountainous areas, divided into the following segments: Upper course of the river (segment of 14.6 km (9.1 mi)) Intermediate course of the river (forming the western limit of the Réserve faunique de Port-Daniel) (9.2 km (5.7 mi)) Lower course of the river (segment of 6.9 km (4.3 mi)) The Rivière Port-Daniel flows onto the north shore of the barachois in the hamlet of Rivière-Port-Daniel, crossing the sandstone at low tide.

These two strips of land are linked by the Canadian National railway bridge and by route 132.

This bay, the width of which at the opening is 2.8 km (1.7 mi), is delimited by the "Cap de la Vieille" (on the east side) and by the Pointe du Sud-Ouest.