Dixfield is a town in Oxford County, Maine, United States. Dixfield is included in the Lewiston-Auburn, Maine metropolitan New England city and town area. The population was 2,253 at the 2020 census. The town motto of Dixfield is "The Only One", because it is the only town in the world to claim that name. Dr. Elijeh Dix, a substantial landowner in the area, bought the town which bears his name.