| St David's Welsh Church, Colwyn Bay | |
| Location: | Rhiw Road, Colwyn Bay, Conwy County Borough |
| Coordinates: | 53.2937°N -3.7268°W |
| Osgraw: | SH 850 788 |
| Website: | Colwyn Bay Parish |
| Dedication: | Saint David |
| Functional Status: | Active |
| Heritage Designation: | Grade II |
| Designated Date: | 25 July 1994 |
| Architect: | Douglas and Minshull |
| Architectural Type: | Church |
| Style: | Gothic Revival |
| Groundbreaking: | 1902 |
| Completed Date: | 1903 |
| Parish: | Colwyn Bay with Bryn-Y-Maen |
| Deanery: | Rhos |
| Archdeaconry: | St Asaph |
| Diocese: | St Asaph |
| Province: | Wales |
| Vicar: | Rev'd Christine Owen |
St David's Welsh Church, Colwyn Bay (Eglwys Dewi Sant) is in Rhiw Road, Colwyn Bay, Conwy County Borough, Wales. It is an Anglican church in the parish of Colwyn Bay with Bryn-Y-Maen, the deanery of Rhos, the archdeaconry of St Asaph, and the diocese of St Asaph. The church is situated behind St Paul's Church and is a Grade II listed building.
St David's Church was built in 1902–03 and designed by the Chester firm of architects Douglas and Minshull. It is a small church with an apsidal sanctuary. The west window is Perpendicular in style. Rising from the roof is a square bellcote with a pyramidal roof on which is an octagonal spirelet. Internally, the screen was made by a local blacksmith, David Jones.
As its name suggests, the services held in the church are in Welsh.