| Cyrniau Nod | |
| Elevation M: | 666 |
| Prominence M: | 8 |
| Listing: | Deleted Marilyn, Hewitt, Nuttall |
| Translation: | Mark Cairns |
| Language: | Welsh |
| Location: | Powys, Wales |
| Range: | Berwyn range |
| Grid Ref Uk: | SH 98847 27918 |
| Topo: | OS Landranger 125 |
Cyrniau Nod is a mountain summit in north east Wales. It is a former Marilyn, the Marilyn summit now being the nearby Foel Cedig. Its summit has the Snowdonia National Park boundary running through it. A number of rivers and streams rise from near the mountain including Afon Tanat, Afon Cedig and Nant Ystrad-y-Groes.
The views from the summit are extensive, if unremarkable due to the featureless, flat moorland surroundings. The summit is marked by a small cairn surrounded by peat bog.
Walking on Cyrniau Nod and its tops is made easier by a track that passes close to every top except Cefn Gwyntog. Otherwise, the walking would be tough indeed, requiring tiresome bog crossing for miles.[1]