Moel Siabod, is a mountain in Snowdonia, North Wales, which sits isolated above the village of Dolwyddelan. At 872 metres, it is the highest peak in the Moelwynion mountain range. The UK National Mountain Centre, Plas-y-Brenin, is located at the foot of Moel Siabod. From the top of the mountain, it is reputedly possible to see 13 of the 14 highest peaks in Wales on a clear day without turning one's head.
The name Moel Siabod is wrongly translated as shapely hill, although William Williams in Observations on the Snowdon Mountains proposed that the name comes from siadod, meaning 'bare hill, whose head or crown is covered in new-fallen snow'. J. Lloyd-Jones M.A., B.Litt, of Dublin University, in his 'Enwau Lleoedd Sir Gaernarfon' 1928, favours Middle English origin 'shabbèd', 'shcabbèd', 'shabbid', 'sceabbed', therefore proposes a shabby, scabby, scarred mountain.