Festivalen ble arrangert fra 11 Mar til 20 Mar 2011 (9 dag(er)).
South By Southwest (SXSW) finner sted i Austin, United States. Her er den fullstendige adressen til festivalen: Austin Convention Center, Austin, TX, US 78701
Duran Duran, Foo Fighters, Machine Gun Kelly, The Strokes, Motionless in White, Snoop Dogg, Black Veil Brides, Panic! at the Disco, Asking Alexandria, Dance Gavin Dance, Queens of the Stone Age, Flogging Molly, Kanye West, Kid Cudi, The Pretty Reckless, Kid Rock, The Head and the Heart, Two Door Cinema Club, Agnes Obel, Skrillex, Portugal. The Man, City and Colour, Bright Eyes, Orchestral Manoeuvres in the Dark, Enter Shikari, Pentagram, Our Last Night, Grouplove, James Blake, Bombay Bicycle Club.
De mest populære sjangrene og undersjangrene i den siste utgaven var:
rock
pop
electronic
indie rock
indie
alternative
alternative rock
indie pop
experimental
metal
post-punk
post-hardcore
garage rock
hard rock
hardcore
lo-fi
post-rock
punk rock
shoegaze