Rhyd Ddu is small village in Snowdonia, North Wales.
Rhyd Ddu is well known as a popular starting point for walks up Snowdon (via the Rhyd Ddu Path), Moel Hebog, Yr Aran and the Nantlle Ridge.
Rhyd Ddu railway station is one of the stops of the Welsh Highland Railway between Caernarfon and Porthmadog.
T. H. Parry-Williams, the poet, author and academic was born and raised at Rhyd Ddu. He twice won both the Chair and the Crown at the National Eisteddfod, in 1912 and 1915.