Audax Club Sportivo Italiano 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 three Copa Chile runner-up finishes in 1981, 1998 and 2018.
The club had their first major success in 1936, when they won the league title. During the 1940s, Audax won two further titles in 1946 and 1948, and a fourth in 1957.