Millis is a town in Norfolk County in the U.S. state of Massachusetts. It is a small town with a population of 7,891 according to the 2010 census. The town is approximately 19 miles (31 km) southwest of downtown Boston and is bordered by Norfolk, Sherborn,Holliston, Medfield, and Medway. Massachusetts state routes 109 and 115 run through Millis.
Millis was first settled in 1657 and was officially incorporated in 1885. Millis was originally part of Dedham, Massachusetts until that town granted the lands of Millis, and other present day surrounding towns, to Medfield in 1651. In 1713, pioneers of Medfieldapplied for a grant to create a new town and, when approved, named this new land Medway. This new town consisted of West Medway (the present day town) and East Medway (present day Millis). Lansing Millis, the founder of the town, successfully incorporated Millis into the Commonwealth of Massachusetts on February 24, 1885.