| Coed y Bwl | |
| Aos: | Mid and South Glamorgan |
| Interest: | Biological |
| Coordinates: | 51.4644°N -3.5715°W |
| Displaymap: | Wales |
| Area: | 2.42 ha |
| Notifydate: | 1 January 1972 |
Coed y Bwl is a Site of Special Scientific Interest in Glamorgan, south Wales. The site is managed by The Wildlife Trust of South and West Wales. It is an ancient ash woodland on the northwest side of the Alun Valley and overlies Carboniferous limestone.