Katharina Schratt, Baroness Kiss von Ittebe (11 September 1853 – 17 April 1940) was an Austrian actress who became "the uncrowned Empress of Austria" as a confidante of Emperor Franz Joseph.

In 1872, she joined the ensemble of the Royal Court Theatre in Berlin, achieving considerable success in a short time.

[5][6] After Elisabeth's assassination in 1898, their relationship continued, with one interruption (1900/01, due to a difference in opinions), until the emperor's death in November 1916.

[7][8] Upon her husband's death in 1909, she also inherited Palais Königswarter, a three-story palace on Vienna's Kärntner Ring boulevard, just across from the State Opera.

Schratt was a friend of notable men such as Count Johann Nepomuk von Wilczek or Prince Ferdinand I of Bulgaria.