Leicester /?l?st?r/ is a town in Worcester County, Massachusetts, United States. The population was 10,970 at the 2010 census.
Leicester was first settled in 1713 and was officially incorporated in 1714. The town was named after Robert Dudley, 1st Earl of Leicester. One of the early settlers in town was a Dr. Samuel Green. He lived at 2 Charlton St., in Greenville (which is now part of Rochdale, a village in Leicester). Samuel Green lived in a house at 2 Charlton Street. He was a doctor who trained many other doctors in the early 1700's. This constituted the first medical school in Massachusetts. The Green family was involved in the creation of both Worcester's Green Hill Park and New York City's Central Park.