Marion is a town in Plymouth County, Massachusetts, United States. The population was 4,907 at the 2010 census.
Marion was first settled in 1679 as "Sippican", a district of Rochester, Massachusetts. The name, which also lends itself to the river which passes through the north of town and the harbor at the heart of town, was theWampanoag name for the local tribe. The town was mostly known for its many local sea captains and sailors whose homes were in town, although there were also some small shipbuilding operations on the harbor as well. By the late 1840s, however, tensions between the village of Mattapoisett and the town led to a battle which sought to redraw the town lines and effectively take over Sippican Village. This caused the villagers to form a committee, which went to Boston to petition for incorporation as its own town. Thus, with the help of a powerful local ally, the town was incorporated on May 14, 1852, and renamed Marion in honor of Revolutionary War hero Francis Marion. Mattapoisett was incorporated in 1857.Since that time, Marion's economy has mostly relied on the waters of Buzzards Bay, both for fishing and for the summer tourism industry.