Clugin (Romansh: Clugen) is a village in the municipality of Andeer in the district of Hinterrhein in the Swiss canton of Graubünden. In 2009 Clugin merged with Andeer and Pignia to form the municipality of Andeer.

Clugin is first mentioned in 1243 as de Cloduno.

Clugin has an area, as of 2006, of 2.5 km2 (0.97 sq mi). Of this area, 28.7% is used for agricultural purposes, while 62.3% is forested. Of the rest of the land, 2.4% is settled (buildings or roads) and the remainder (6.5%) is non-productive (rivers, glaciers or mountains).