| River Clodiagh | |
|---|---|
 The River Clodiagh near Portlaw | |
| Native name | An Chlóideach (Irish) |
| Location | |
| Country | Ireland |
| County | County Waterford |
| Basin features | |
| Progression | River Suir |
The River Clodiagh (Irish: An Chlóideach) is a small river which rises in Lough Coumduala in the Comeragh Mountains in north County Waterford. It flows through the villages of Rathgormack, Clonea-Power and Portlaw before joining the River Suir just outside Portlaw. The river is fed by a number of smaller tributaries including Hunts stream and Aughtnawilliam stream.
The river is used for canoeing, kayaking and fishing. In April 2010, two canoeists on a sit-on kayak drowned after being stuck in a weir at Portlaw.