Chesham is an unincorporated community within the town of Harrisville in Cheshire County, New Hampshire, United States.

Part of the village is listed on the National Register of Historic Places as the Chesham Village District, while the southernmost portions are included in the Pottersville District, also listed on the National Register.

The area was given its name by George Chase, a summer visitor whose nearby estate in Dublin was called Chesham.

The area's economic activity began to subside after the end of railroad service in 1936.

The junction is one of the village's central points, where the railroad station and a surviving store building are located, as is the temple-fronted Greek Revival house of George Bemis.