| Ludgine River | |
| Pushpin Map: | Quebec |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Chaudière-Appalaches |
| Subdivision Type4: | MRC |
| Subdivision Name4: | Beauce-Sartigan Regional County Municipality, Le Granit Regional County Municipality |
| Source1: | Agricultural streams |
| Mouth: | Chaudière River |
| Mouth Location: | Saint-Ludger |
| Progression: | Chaudière River, St. Lawrence River |
| River System: | St. Lawrence River |
| Basin Size: | 60.7km (37.7miles) |
| Tributaries Left: | (upstream) |
| Tributaries Right: | (upstream) |
The Ludgine River (in French: rivière Ludgine) is a tributary of the west bank of the Chaudière River which flows northward to empty onto the south shore of the St. Lawrence River.
The Ludgine River flows through Quebec, Canada, MRC of:
The main neighboring watersheds of the Ludgine river are:
The Ludgine river has its source in a mountainous area in the canton of Dorset in the municipality of Saint-Hilaire-de-Dorset. This area is located east of the municipality boundary of Saint-Sébastien and north of the limit of the municipality of Lac-Drolet.
From its source, the Ludgine River flows on divided into the following segments:
The Ludgine River flows on the west bank of the Chaudière River in the municipality of Saint-Ludger. Its confluence is located (or in a direct line) downstream from the mouth of the Drolet River and upstream from the bridge of Saint-Ludger.
The term "Ludgine" is a female given name of French origin.
Until recently, maps designated this watercourse under the toponym “Eugenie River”. The term "Ludgine" could be the popular diminutive of "Ludger" or the graphic synthesis of "Ludger" and "Eugenie". Another hypothesis attributes the name of "Ludgine" to an Amerindian named Eugénie, who lived in Rang Ludgine, in Lac-Drolet, near the river. The English pronunciation of the first name would have led to the spelling "Ludgine".[2]
The toponym “Rivière Ludgine” was made official on January 31, 1980, at the Commission de toponymie du Québec.[3]