New Gloucester is a town in Cumberland County, Maine, United States. New Gloucester is included in the Lewiston-Auburn, Maine metropolitan New England city and town area. It is home to the Sabbathday Lake Shaker Village, the last active Shaker village in the U.S. The town's population was 5,676 at the 2020 census.

Sabbathday Lake Shaker Village is a Shaker village near New Gloucester and Poland, Maine, in the United States. It is the last active Shaker community, with two members as of 2022. With a new member, it had expanded to three members by 2021. The community was established in either 1782, 1783, or 1793, at the height of the Shaker movement in the United States. The Sabbathday Lake meetinghouse was built in 1794. The entire property was declared a National Historic Landmark in 1974.