| Country: | Wales |
| Official Name: | Ystrad Fflur |
| Static Image: | Eglwys y Santes Fair, Ystrad Fflur - Church of St Mary, Ystrad Fflur, near abbey 15.jpg |
| Static Image Caption: | Church of St Mary |
| Coordinates: | 52.2744°N -3.8379°W |
| Cardiff Distance Mi: | 61.7 |
| Cardiff Distance Km: | 99.3 |
| London Distance Mi: | 166.8 |
| London Distance Km: | 268.5 |
| Unitary Wales: | Ceredigion |
| Community Wales: | Ystrad Fflur (community) |
| Constituency Welsh Assembly: | Ceredigion |
| Constituency Westminster: | Ceredigion Preseli |
| Post Town: | Tregaron |
| Postcode District: | SY25 |
| Postcode Area: | SY |
| Os Grid Reference: | SN 747 656 |
| Population: | 712 |
| Population Ref: | (2011)[1] |
Ystrad Fflur (English: Valley of Flowers) is a hamlet and community in Ceredigion, Wales, south-east of Aberystwyth. The community includes the villages of Pontrhydfendigaid and Ffair Rhos. Strata Florida Abbey is located in the vicinity.
Ystrad Fflur is part of the Ceredigion constitutency, represented in the Senedd by Elin Jones[2] and in the House of Commons by Ben Lake[3] (both Plaid Cymru).