Clashnessie (Scottish Gaelic: Clais an Easaidh) is a small crofting community on the North-West coast of Scotland; specifically in the Assynt area of Sutherland.

Although 100 miles (160 km) north of Inverness, the village's micro-climate is generally mild, due to the closeness to the Atlantic Ocean Gulf Stream.

In the landscape around them are a number of the ruined traces of earlier dwellings and barns, the unmortared blackhouses of the crofters who were first cleared to the coast from more arable homelands in the interior.

By the 1960s the resident population had fallen to around a dozen people, although within living memory Clashnessie had an inn, a post office, and a shop.

Although many houses have been decrofted, there has been some successful revival of traditional crofting too, with Highland cattle joining Cheviot sheep on the community's common grazing.