Ursula Plassnik (German pronunciation: [ˈʊʁzula ˈplasnɪk]; born 23 May 1956) is an Austrian diplomat and politician.

On 1 July 1997 she was chosen by Wolfgang Schüssel, who was Austrian vice-chancellor at that time, to become his cabinet chief.

She remained cabinet chief in Schüssel's government until 15 January 2004, when she became Austria's ambassador to Switzerland.

Recently, Ursula Plassnik's application for the position as secretary-general of the Organization for Security and Cooperation in Europe (OSCE) has been vetoed by Turkey, because of her opposition to that country's bid to join the European Union.

Barenboim had planned to make his Egyptian debut in January 2009 as part of a world tour with the West-Eastern Divan Orchestra, the Arab-Israeli group he founded with the writer Edward Said.