The Ketil (, meaning "Shell Mountain") is a 2,010 mâÂÂhigh mountain in southern Greenland, in the Kujalleq municipality.
Ketil's granite walls are similar to Tiningnertok's (Apostelen Tommelfinger), another massive peak in the east coast.
Together with Nalumasortoq and Ulamertorsuaq, Ketil is part of the group of three massive largely unglaciated rocky mountains rising in the peninsula of the mainland which forms the eastern side of the Tasermiut Fjord.
In the same manner as its slightly lower neighbour Ulamertorsuaq, Ketil has become popular among mountain climbers owing to its higher than 1000 m sheer western granite wall. It is considered one of the most challenging Big Walls on Earth.
This mountain is marked as a peak in some sources.