The biggest fan club is Ultras Rapid, which was founded in 1988. Other important fan clubs are the ultras group Tornados Rapid and Spirits Rapid and the hooligan firm Alte Garde Dritte Halbzeit.
Rapid Wien contest the Wien derby with their local Vienna rival Austria Wien. The two clubs are the most supported and successful football teams in the entire country. Both teams originate from Hietzing, the 13th district in the west of the city, but have since moved into different districts. While Austria Wien is seen as a middle-class club, Rapid traditionally hold the support of the capital's working class. The two clubs first met in a league championship match on 8 September 1911, a 4–1 victory for Rapid. The fixture is the most-played derby in European football after the Old Firm in Glasgow between Rangers and Celtic.