Brigittenauer AC (full name 1. Brigittenauer Athletiksport Club, often just called BAC) was a football club from Vienna.
The club was formed on 27 August 1925 from the merger of the former second division club SC Donaustadt (founded 1905) and the relegated FC Ostmark Wien (founded 1910). The greatest successes was the second place in 1927 in the first season after promotion and reaching the cup final in 1933. In this year the club was last relegated from the first division. BAC played five seasons in the top division under this name. The most famous players were Karl Adamek and Heinrich Hiltl.
After being relegated to the second division in 1938 the club lost his importance. In 1972 and 1974 there were mergers with SC Rasenspieler Höchstädt to form Brigittenauer AC-Hochstädt and with SV Helios Brigittenau to form Brigittenauer AC. In 1974 the name was changed to 1. Brigittenauer SC. In 1993 there was a game association with the SKV Feuerwehr in the fourth-rate Vienna city league to form the Brigittenauer SC Feuerwehr. After dissolution the following year the club was now called Brigittenauer SC. In 2009 there was a final merger with ISS Admira Landhaus and the name Brigittenau dissappeared.