Nonamesset Island

Nonamesset Island is the most easterly of the Elizabeth Islands of Dukes County, Massachusetts, United States. The island has a land area of 1.398 km2 or 345.5 acres) and was uninhabited as of the 2000 census. The island is part of the town of Gosnold, Massachusetts.

Painter Robert Swain Gifford was born on the island in 1840.