| Tagajõgi | |
| Mouth Coordinates: | 59.0215°N 27.104°W |
| Subdivision Type1: | Country |
| Length: | 48.7km (30.3miles) |
| Basin Size: | 256.6km2 |
The Tagajõgi is a river in Ida-Viru and Lääne-Viru counties, Estonia. The river is 48.7 km long, and its basin size is 256.6 km2. It runs from Lake Tudu into the Rannapungerja River.[1]
Trout live in the river.