| Dyfi National Nature Reserve | |
| Iucn Category: | IV |
| Map: | Wales#United Kingdom |
| Coordinates: | 52.5269°N 4.0514°W |
The Dyfi National Nature Reserve, managed by Natural Resources Wales, the successor body to the Countryside Council for Wales, is located north of Aberystwyth in the county of Ceredigion, Wales[1] on the Dyfi estuary.
The area was designated as a Nature Reserve in 1969 and consists of three separate areas: