The Acushnet Heights Historic District is a predominantly residential historic district in central New Bedford, Massachusetts. It encompasses a densely-built urban area about 20 acres (8.1 ha) in size, which was developed as a working-class area, beginning in the 1860s, for the many workers in the city's factories. The district was listed on the National Register of Historic Places in 1989. It abuts the North Bedford Historic District, which is just to the south, and includes the following separately-listed properties: the Union Street Railway Carbarn, the Bradford Smith Building (since demolished), and the Dawson Building.