The South End is a neighborhood in Boston, Massachusetts, United States which is bordered by Back Bay, Chinatown, and Roxbury. It is distinguished from other neighborhoods by its Victorian-style houses and the parks in and around the area. The South End is the largest intact Victorian row-house district in the country, covering over 300 acres (120 ha). It has eleven residential parks. In 1973, the South End was listed on the National Register of Historic Places. Much of the neighborhood was originally marshlands in Boston's South Bay. After it was filled in, construction began in 1849.

Boston's diverse neighborhoods serve as a political and cultural organizing mechanism. The City of Boston's Office of Neighborhood Services has designated 23 Neighborhoods in the city: