River Dulas

{{Short description|River in Ceredigion, Wales}}

{{for|other rivers|Dulas (disambiguation)}}

{{Use dmy dates|date=April 2022}}

File:Bridge Over Afon Dulas - geograph.org.uk - 492217.jpg]]

The River Dulas (Welsh: Afon Dulas) is a tributary of the River Teifi and has its source near the village of Llangybi, Ceredigion, Wales. Its confluence with the Teifi is near Lampeter.{{cite news|url=https://www.bbc.co.uk/news/uk-wales-mid-wales-40178351|title=Investigation into River Teifi pollution incident in Lampeter|date=6 June 2017|work=BBC News|publisher=bbc.co.uk|access-date=14 February 2018}}

In June 2017, effluent from an anaerobic digestion plant in Lampeter was discharged into the Dulas. This caused a pollution incident that was investigated by Natural Resources Wales.