Southsider or Southsiders may refer to:
Geography Southsiders, or Vancouver Southsiders, independent supporters group for Vancouver Whitecaps FC of Major League Soccer Southsiders, natives of Southside, Dublin, notable Southsiders including Maeve Binchy Southsiders, natives of the Gorbals in Glasgow Southsiders, natives of South Side, Chicago
Music Southsiders (album), a 2014 album by Atmosphere The Southsiders, original band of Dave Stewart (musician, born 1950)
Films The Southsiders, 1932 Swedish film
Sports The Chicago White Sox, who are often nicknamed the "South Siders"
See also Southside (disambiguation)