Webster is a town in Worcester County, Massachusetts, United States. The population was 16,767 at the 2010 census.
Webster was first settled in 1713 and was officially incorporated on March 6, 1832. The area forming the town had previously been divided among the town of Dudley, the town of Oxford and an unincorporated gore. The primary founder was the manufacturer Samuel Slater, who came to the area after his celebrated activities in Pawtucket, Rhode Island, and founded several textile mills, one of which was taken over by the Cranston Print Works in 1936. He named the town after his friend Daniel Webster. Slater spent his last years in Webster and died and is buried there in Mount Zion Cemetery.
According to the United States Census Bureau, the town has a total area of 14.5 square miles (38 km2), of which 12.5 square miles (32 km2) is land and 2.0 square miles (5.2 km2), or 14.10%, is water.