| River Rhaeadr | |
|---|---|
 River Rhaeadr near Llanrhaeadr-ym-Mochnant | |
 | |
| Location | |
| Country | Wales |
| Physical characteristics | |
| Source | Pistyll Rhaeadr |
| Mouth | |
• location | Afon Tanat |
The River Rhaeadr (Welsh: Afon Rhaeadr) is a river in Wales.
It starts at the Pistyll Rhaeadr waterfall a few miles from the village of Llanrhaeadr-ym-Mochnant, where the Afon Disgynfa falls over a 240-foot (73 m) cliff-face, after which the river is known as the Afon Rhaeadr.
Downstream, the Afon Rhaeadr runs into the Afon Tanat.