| Egiin Gol | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Mongolia |
| Subdivision Type2: | Aimags |
| Subdivision Name2: | Khövsgöl, Bulgan |
| Subdivision Type5: | Major city |
| Subdivision Name5: | Khatgal |
| Length Km: | 475 |
| Source1: | Lake Khövsgöl |
| Source1 Location: | near Khatgal |
| Source1 Coordinates: | 50.4194°N 100.1528°W |
| Source1 Elevation: | 1645m (5,397feet) |
| Mouth: | Selenga |
| Mouth Coordinates: | 49.3875°N 103.625°W |
| Basin Size Km2: | 49100 |
| Tributaries Left: | Üür River, Tarvagatai River |
The Egiin Gol (mn|Эгийн гол) is a river in the Khövsgöl and Bulgan aimags in northern Mongolia. It is the only outflow of Lake Khövsgöl and a left tributary of the Selenge river. It is long, and has a drainage basin of .[1] 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.