| Tomnatecu River | |
| River | |
| Countries | Romania |
|---|---|
| Counties | Sibiu County |
| Source | |
| - location | Cindrel Mountains |
| - elevation | 1,121 m (3,678 ft) |
| - coordinates | |
| Mouth | Sebeş |
| - location | Lake Tău |
| - elevation | 791 m (2,595 ft) |
| - coordinates | |
The Tomnatecu River is a tributary of the Sebeş River in Romania.