Suilven is a Graham mountain in Scotland. Lying in a remote area in the west of Sutherland, it rises from a wilderness landscape of moorland, bogs and lochans known as Inverpolly National Nature Reserve. Suilven forms a steep-sided ridge some two kilometres in length. The highest point, Caisteal Liath, lies at the northwest end of this ridge. There are two other summits: Meall Meadhonach at the central point of the ridge is 723 metres (2,372 ft) high, whilst Meall Beag lies at the southeastern end.