Sutton, officially the Town of Sutton, is a town in Worcester County, Massachusetts, United States. The population was 9,357 in the 2020 United States Census. Located in the Blackstone Valley, the town was designated as a Preserve America community in 2004.

Worcester County is a county in the U.S. state of Massachusetts. At the 2020 census, the population was 862,111, making it the second-most populous county in Massachusetts. It is also the largest county in Massachusetts by geographic area. The largest city and traditional shire town is Worcester. Worcester County is part of the Worcester, MA–CT metropolitan statistical area and the Boston-Worcester-Providence combined statistical area.