Festivalen ble arrangert fra 10 Aug til 17 Aug 2015 (7 dag(er)).
Sziget finner sted i Budapest, Hungary. Her er den fullstendige adressen til festivalen: Május 9. park Budapest, Hungary 1033
Robbie Williams, Tyler, the Creator, Dropkick Murphys, Milky Chance, The Script, Kings of Leon, Cro, Martin Garrix, Mariza, alt-J, Hollywood Undead, Halestorm, Jungle, Interpol, Foals, Limp Bizkit, Alesso, Passenger, SOJA, Balthazar.
De mest populære sjangrene og undersjangrene i den siste utgaven var:
electronic
rock
folk
alternative
indie
alternative rock
electronica
indie rock
house
dance
indie pop
world music
electro
progressive house
experimental
electro house
techno
gypsy
ska