Cardigan Mountain School, also called Cardigan or CMS, for short, is an all-boys independent boarding school for grades six through nine, located on 62 Alumni Drive, Canaan, New Hampshire, United States. It was founded in 1945 on land provided by Dartmouth College.

Canaan is a town in Grafton County, New Hampshire, United States. The population was 3,794 at the 2020 census. It is the location of Mascoma State Forest. Canaan is home to the Cardigan Mountain School, the town's largest employer.