Cotuit is one of the villages of the Town of Barnstable on Cape Cod in Barnstable County, Massachusetts, United States. Located on a peninsula on the south side of Barnstable about midway between Falmouth and Hyannis, Cotuit is bounded by the Santuit River to the west on the Mashpee town line, the villages of Marstons Mills to the north and Osterville to the east, and Nantucket Sound to the south. Cotuit is primarily residential with several small beaches including Ropes Beach, Riley's Beach, The Loop Beach and Oregon Beach.

Barnstable is a town in the U.S. state of Massachusetts and the county seat of Barnstable County. Barnstable is the largest community, both in land area and population, on Cape Cod, and is one of thirteen Massachusetts municipalities that have been granted city forms of government by the Commonwealth of Massachusetts but wish to retain "the town of" in their official names. At the 2020 census it had a population of 48,916. The town contains several villages within its boundaries. Its largest village, Hyannis, is the central business district of the county and home to Barnstable Municipal Airport, the airline hub of Cape Cod and the islands of Martha's Vineyard and Nantucket. Additionally, Barnstable is a 2007 winner of the All-America City Award.