Dartmouth, Massachusetts is a coastal town in Bristol County, Massachusetts. Old Dartmouth was the first area of Southeastern Massachusetts to be settled by Europeans, primarily English. Dartmouth is part of New England's farm coast, which consists of a chain of historic coastal villages, vineyards, and farms. June 8, 2014 marked the 350th year of Dartmouth's incorporation as a town. It is also part of the Massachusetts South Coast. The local weekly newspapers are The Dartmouth/Westport Chronicle and Dartmouth Week. The Portuguese municipality of Lagoa is twinned with the town; along with several other Massachusetts and Rhode Island towns and cities around Bristol County.

The northern part of Dartmouth has the town's large commercial districts. The southern part of town abuts Buzzards Bay, and there are several other waterways, including Lake Noquochoke, Cornell Pond, Slocums River, Shingle Island River and Paskamansett River. The town has several working farms and one vineyard, which is part of the Coastal Wine Tour. With a thriving agricultural heritage, the town and state have protected many of the working farms.