Kittsee is an Austrian municipality in the District of Neusiedl am See, Burgenland. Kittsee, like the rest of Burgenland, belonged to Hungary until 1920/21. After the end of the First World War, the territory of West-Hungary was given to Austria by the Treaties of St. Germain and Trianon. Since 1921, the town has belonged to the newly founded State of Burgenland.

Historical sites:
- Remains of a medieval church named after St. Pancratius, only the tower survived after 1529. The original building was erected before 1250. The present-day Church of Exaltation of the Holy Cross was built in 1736 (named Church of Our Lady until 1808).
- The new Castle (Schloss Kittsee) was built in 1668 by expanding the Grange. Since 1974 it houses an ethnographic museum.
- Joseph Joachim's birth-house.