Talybont Reservoir is the largest stillwater reservoir in the central Brecon Beacons, covering 318 acres (1.29 km²) in a heavily wooded, steep-sided valley in Powys, Wales. The reservoir was constructed starting in 1931 by Newport Corporation and began supplying water to Newport in 1939. It is now owned by Welsh Water.

Paddlers should be aware that there is no access for canoeing or kayaking on Talybont Reservoir. Those seeking paddling opportunities in the region will need to look elsewhere, as the water body does not permit this activity.

For those visiting the area for other purposes, parking is available near the dam at LD3 7YS, and the Taff Trail runs along the eastern side of the reservoir. The site is managed primarily as a drinking water supply and a fly-fishing venue for wild brown trout, with fishing restricted to bank angling only.