Eg River
| Eg River (Эгийн гол) | |
| River | |
 Eg River some kilometers south of Khatgal | |
| Country | Mongolia |
|---|---|
| Aimags | Khövsgöl, Bulgan |
| Major city | Khatgal |
| Tributaries | |
| - left | Üür River, Tarvagatai River |
| Source | Lake Khövsgöl |
| - location | near Khatgal |
| - elevation | 1,645 m (5,397 ft) |
| - coordinates | MN 50°25′10″N 100°09′10″E / 50.41944°N 100.15278°E |
| Mouth | Selenge River |
| - coordinates | MN 49°23′15″N 103°37′30″E / 49.38750°N 103.62500°ECoordinates: MN 49°23′15″N 103°37′30″E / 49.38750°N 103.62500°E |
| Length | 475 km (295 mi) |
| Basin | 49,100 km2 (18,958 sq mi) |
The Eg River (Mongolian: Эгийн гол, Egiin gol ) is a river in the Khövsgöl and Bulgan aimags in northern Mongolia. It is the only outflow of Lake Khövsgöl and a tributary of the Selenge river. Wooden bridges exist near Khatgal and in Tünel sum, and a concrete bridge has been built in Erdenebulgan. In Bulgan aimag there is a bridge between Teshig and Khutag-Öndör sums.
Since the early 1990s there have been efforts to build a hydroelectric dam on this river. These attempts, however, have been opposed by several academic communities: archaeology because of the rich and not yet fully explored archaeological sites in area; geology because the area may have earthquakes. A dam would also displace parts of the local population as it floods some pastures and homesteads.