| St Dyfnan's Church | |
| Country: | Wales, United Kingdom |
| Denomination: | Church in Wales |
| Architectural Type: | Church |
| Heritage Designation: | Grade II* |
| Designated Date: | 5 December 2007 |
| Style: | Medieval |
St Dyfnan's Church is a medieval church in the village of Llanddyfnan, Anglesey, Wales. The building dates from the 14th century and underwent extensive renovations in the mid-19th century. The church lies north from the B5109 road. It was designated as a Grade II*-listed building on 5 December 2007.[1]