The Owenreagh River is a short but intense whitewater run located in County Kerry, Munster, in the Black Valley area. The run is approximately 1 kilometre in length and is rated Grade 5, making it suitable only for experienced and skilled paddlers.

The river features four main rapids. The first is a short Grade 4 series of drops, followed by a single slide with a hole at the bottom and a small pool. The centrepiece is a large cascade described as capable of getting even experienced river-runners' attention. After some Grade 3 water, the run concludes with a final cascade that carries notable pin potential.

Hazards are significant. In low to medium water, there is major injury potential if lines are misjudged. In high water, the risk escalates to life-threatening. Trees and fences at river level present additional hazards throughout the run. There is no gauge available, so paddlers must assess conditions on-site from the top of the run before committing.

To reach the put-in, take the N71 to Moll's Gap from either Kenmare or Killarney, then follow the R568 toward Sneem. After approximately 1 kilometre, a minor road on the right leads into the Black Valley. The put-in is roughly 5 kilometres along this road, which runs alongside the river for much of the route. The take-out is marked by a small gravel layby on the right, at the point where the river and road diverge at the bottom of the final slide.

Parking is limited at the take-out end of the run. The area is a popular tourist destination, so paddlers are advised to change discreetly. There are no formal facilities for paddlers. No access restrictions are currently known, though the narrow road and tourist traffic should be factored into trip planning.