Audax Club Sportivo Italiano (Spanish pronunciation: [ˈauðaks itaˈljano]) is a Chilean football club based in La Florida. Founded in 1910, it plays in the Campeonato Nacional and has spent most of its history in the top tier of Chilean football. Audax has been national champions four times, joint sixth alongside Magallanes. The club also achieved two Copa Chile runners-up in 1981 and 1988.
The club had their first major success in 1936, when they won the league tournament. During the 1940s, Audax won two leagues in 1946 and 1948, reaching a fourth in 1957.