The Old Attleboro Post Office is a historic post office building at 75 Park Street in Attleboro, Massachusetts. It is a Classical Revival two story stone structure, faced in Indiana limestone, with granite steps leading to a monumental multi-column facade. The interior lobby features a patterned marble floor. The building was constructed in 1916 at a cost of $85,000.[2] Today it is no longer a post office. Instead it is divided between the city of Attleboro and Bristol County, which use it as office space.