The Bontnewydd palaeolithic site (Welsh: [bɔntˈnɛuɨ̯ð]), also known in its unmutated form as Pontnewydd (Welsh language: 'New bridge'), is an archaeological site near St Asaph, Denbighshire, Wales. It is one of only three sites in Britain to have produced fossils of ancient species of humans (together with Boxgrove and Swanscombe) and the only one with fossils of a classic Neanderthal. It is located a few yards east of the River Elwy, near the hamlet of Bontnewydd, near Cefn Meiriadog, Denbighshire.