| Rivière du Seigneur | |
| Pushpin Map: | Quebec |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Capitale-Nationale |
| Subdivision Type4: | Regional County Municipality |
| Subdivision Name4: | Charlevoix Regional County Municipality |
| Subdivision Type5: | Municipality |
| Subdivision Name5: | Les Éboulements |
| Length: | 10.7km (06.6miles) |
| Source1: | Laterrière Lake |
| Source1 Location: | Les Éboulements |
| Source1 Coordinates: | 47.5189°N -70.3693°W |
| Source1 Elevation: | 298 m |
| Mouth: | Ruisseau de la Martine |
| Mouth Location: | Les Éboulements |
| Mouth Coordinates: | 47.4628°N -70.3397°W |
| Mouth Elevation: | 4 m |
| Tributaries Left: | (Upstream from the mouth) Ten unidentified streams, Armand-Jude River. |
| Tributaries Right: | (Upstream from the mouth) Discharge from a small lake, discharge from a small lake, discharge from the lake in Mimi, discharge from a small lake. |
The rivière du Seigneur (English: River of the Lord) is a tributary of the northwest shore of the St. Lawrence River, in the municipality of Les Éboulements, in the Charlevoix Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.
The upper part of this small valley is accessible by the chemin du rang Sainte-Marie and by the chemin du rang Sainte-Catherine. The lower part is served by the Route du Port which goes up the valley and the Route du Fleuve which runs parallel to the river bank. Forestry and agriculture are the main economic activities in this valley.
The surface of the Lord's river is generally frozen from the beginning of December until the end of March; however, safe traffic on the ice is generally from mid-December to mid-March. The water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.
The Lord's river rises from Lac Laterrière (length: ; altitude:), located in the forest area on the west side of rang Sainte-Catherine road and south of rang Sainte-Marie Road, in Les Éboulements. It is mainly fed by the Clermont stream (coming from the northwest). The mouth of this small lake is located at:
From this source, the course of the Lord's river descends on, with a drop of, according to the following segments:
The Lord's river flows into Baie des Éboulements, on the northwest shore of the Estuary of Saint Lawrence, in the hamlet Les Éboulements-Center. This mouth is located at:
The name “Rivière du Moulin” was the official form in the 1969 Toponymic Directory.
The toponym "Rivière du Seigneur" was formalized on August 17, 1978 at the Place Names Bank of the Commission de toponymie du Québec.[2]