The Austrian Open Kitzbühel (known as the Generali Open Kitzbühel and originally known as the Austrian International Championships (1894–1968))[1] is an annual tennis tournament held in Kitzbühel, Austria.

The event was part of the ATP World Series from the creation of ATP World Tour till 1998, International Series Gold from 1999 to 2008 and ATP World Tour 250 series in 2009.

It was downgraded to the ATP Challenger Tour in 2010, replaced by the Open de Nice Côte d'Azur, before regaining top tour status in 2011.

It is once again part of the 250 series.

The tournament has been held, since 1894, on clay courts.