The Horseshoe Pass (Welsh: Bwlch yr Oernant, "Pass of the Cold Stream") is a mountain pass in Denbighshire, north-east Wales. It separates Llantysilio Mountain to the west from the 565 metre (1,854 feet) mountain and Marilyn Cyrn-y-Brain to the east. The A542 road from Llandegla to Llangollen runs through the pass, reaching a maximum height of 417 metres (1,368 ft).