Graniteville is a census-designated place (CDP) in the town of Barre, Washington County, Vermont, United States. As of the 2020 census, Graniteville had a population of 717. Prior to 2010, it was part of the Graniteville-East Barre CDP, which consisted of three unincorporated villages in the town: Graniteville, East Barre, and Websterville.
Graniteville is home to the Rock of Ages granite company and the E. L. Smith Quarry, the world's largest deep hole granite quarry.
According to the United States Census Bureau, the Graniteville CDP has a total area of , of which is land and , or 1.94%, is water.