Sgùrr a' Ghreadaidh (Scottish Gaelic: Sgùrr a’ Ghreadhaich, "peak of torment")[2] is the highest peak on the northern half of the Black Cuillin ridge on the Isle of Skye in Scotland.

Like the rest of the range it is composed of gabbro, a rock that provides good grip for mountaineering.

The simplest route ascends via the col of An Dorus (the Door), most easily reached from Glen Brittle; however, the immediate exit from An Dorus is a Grade 3 scramble and there is sustained scrambling of a lower grade on the north ridge leading to the summit.

The south ridge leading towards Sgùrr Thormaid is also Grade 3, with few opportunities to descend safely for some considerable distance.

He had earlier repeated the ascent of Sgùrr nan Gillean aged 10.