The Fairmount-Southside Historic District is a 340-acre (140 ha) historic district (United States) that has been listed on the National Register of Historic Places since 1990.
It includes Late 19th and Early 20th Century American Movements architecture, Late 19th and 20th Century Revivals architecture, and Late Victorian architecture.
It includes the South Side Masonic Lodge and the Meredith Benton House which are separately listed on the NRHP.
The listing includes 1,013 contributing buildings and one other contributing structure.
It is asserted to be the largest historic district designated in the southwestern United States.
The webpage title for the entity describes itself as "Fairmount National Historic District", while the webpage itself names it "Fairmount Historic District".