Yarmouth is a town in Cumberland County, Maine, United States, twelve miles north of the state's largest city, Portland. When originally settled in 1636, as North Yarmouth, it was part of the Massachusetts Bay Colony, and remained part of its subsequent incarnations for 213 years. In 1849, twenty-nine years after Maine's admittance to the Union as the twenty-third state, it was incorporated as the Town of Yarmouth.

North Yarmouth, officially the Town of North Yarmouth, is a town in Cumberland County, Maine, United States. North Yarmouth is included in the Lewiston-Auburn, Maine metropolitan New England city and town area. The population was 4,072 at the 2020 United States Census. It is part of the Portland–South Portland–Biddeford Metropolitan Statistical Area.