The Boston, Clinton, Fitchburg and New Bedford Railroad was a railroad in Massachusetts. It was formed in 1876 as a consolidation of the Boston, Clinton and Fitchburg Railroad with the New Bedford Railroad.
In 1879, it was leased to the Old Colony Railroad for 999 years. In 1881 the company leased the Framingham and Lowell Railroad, renaming it the Lowell and Framingham Railroad.
The Boston, Clinton, Fitchburg and New Bedford Railroad was consolidated outright into the Old Colony on March 5, 1883. The merger added 126.2 miles to the Old Colony network, providing important links to the industrial centers of Fitchburg and Lowell from Southeastern Massachusetts.[1] The line would later become part of the New York, New Haven and Hartford network in 1893 with its lease of the entire Old Colony system.