West Boylston is a town in Worcester County, Massachusetts, United States and a northern suburb of Worcester. The population was 7,877 at the 2020 census. West Boylston includes the village of Oakdale, located on the opposite side of the Wachusett Reservoir from West Boylston center along Route 140. Although the town was split off from Boylston, it has a larger population than its eastern namesake.

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.