| Maes Hiraddug | |
| Aos: | Clwyd |
| Interest: | Biological |
| Coordinates: | 53.3032°N -3.4069°W |
| Displaymap: | Wales |
| Area: | 4.37 ha |
| Notifydate: | 11 November 1999 |
Maes Hiraddug is a Site of Special Scientific Interest in the preserved county of Clwyd, north Wales.
It is species-rich neutral grassland which includes notable species including spiny restharrow and the greater butterfly orchid. The reserve is managed by the North Wales Wildlife Trust.[1] It is an example of wildflower meadow which pre-dates modern agricultural land management.