The Central New Bedford Historic District is one of nine historic districts in New Bedford, Massachusetts, United States. The district encompasses the city's central business district, built up during the time in the late 19th century when textiles had replaced whaling as the city's main industry. It is a 29-acre (12 ha) rectangular area bounded by Acushnet Avenue and the older New Bedford Historic District on the east, School Street to the south, Middle Street on the north and 6th Street (and the County Street Historic District) in the west. It was added to the National Register of Historic Places in 1980.