From Norman times the manor, parish, and later borough were formally known as Great Marlow, distinguishing them from Little Marlow. The ancient parish was large, including rural areas north and west of the town. In 1896 the civil parish of Great Marlow was divided into Great Marlow Urban District (the town) and Great Marlow civil parish (the rural areas). In 1897 the urban district was renamed Marlow Urban District, and the town has been known simply as Marlow.
