New Bedford is a city in Bristol County, Massachusetts, United States. It is located on the Acushnet River in what is known as the South Coast region, abutting Buzzards Bay. At the 2020 census, New Bedford had a population of 101,079, making it the state's ninth-largest city and the largest of the South Coast region. It is the second-largest city in the Providence metropolitan area and included in the greater Boston combined statistical area.

During the first half of the 19th century, New Bedford was one of the world's most important whaling ports. At its economic height during this period, New Bedford was the wealthiest city in North America per capita. New Bedford was also a center of abolitionism at this time. The city attracted many freed or escaped African-American slaves, including Frederick Douglass, who lived there from 1838 until 1841. The city also served as a setting in Herman Melville's 1851 novel Moby-Dick. From 1876 to 1900, New Bedford served as the initial home port for the Revenue Cutter School of Instruction, the precursor of the United States Coast Guard Academy.