Greene is a town in Androscoggin County, Maine, United States. The population was 4,350 at the 2010 census. It is included in both the Lewiston-Auburn, Maine Metropolitan Statistical Area and the Lewiston-Auburn, Maine Metropolitan New England City and Town Area.
Greene is named for Nathanael Greene. The town was incorporated in 1788. Land was given off to Lewiston in 1852 and to Webster (present day Sabattus) in 1895. The last surviving American Civil War Union Army brevet general, and general of any grade, Aaron S. Daggett was born in Greene in 1837.
According to the United States Census Bureau, the town has a total area of 35.19 square miles (91.14 km2), of which 32.28 square miles (83.60 km2) is land and 2.91 square miles (7.54 km2) is water.
As of the census of 2010, there were 4,350 people, 1,676 households, and 1,246 families living in the town. The population density was 134.8 inhabitants per square mile (52.0/km2). There were 1,880 housing units at an average density of 58.2 per square mile (22.5/km2).