Corrwg Fechan Falls is a waterfall located in the South Wales Valleys near Glyncorrwg, dropping into a gully along the Afon Corrwg Fechan.

It is reached via a walking route that follows the western bank of the river up Cwm Corrwg Fechan, passing through a gate and continuing along a track that curves around Mynydd Corrwg Fechan hill before crossing the river.

The falls sit down in the gully to the right once the track completes its bends and faces Mynydd Corrwg Fechan again.

Several smaller cascades lie below the main falls, and additional waterfalls can be found on streams across the river, though crossing requires care. The route is rated as suitable for experienced to expert walkers.