Landhaus Eisenstadt, Regional parliament building in Eisenstadt, Austria.

Landhaus Eisenstadt is a government building with a symmetrical front and two interior courtyards that create distinct working spaces. A northern extension houses the regional archives and provides rooms for various administrative departments.

The Landtag and provincial government met in Eisenstadt's Martinkaserne from 1922 to 1930, while the Landnahme had been directed from the castle in Wiener Neustadt. The present Landhaus was built from 1926 to 1929 to plans by Rudolf Perthen, together with a civil servants' settlement on Tillstraße, and occupied in 1930. A western annex, the Landhaus-Neu, followed from 1973 and opened in July 1977.

In the Landtag meeting hall hung Ferdinand Kitt's wall painting "Begrüßung des heimgekehrten Burgenlandes" (Welcoming of the Returned Burgenland), destroyed in 1945. The building also holds a bust of Federal President Karl Renner by sculptor Gustinus Ambrosi.

The Landhaus stands on Landhausgasse in Eisenstadt, with the older 1930 building and the "Landhaus-Neu" added to its west and opened in July 1977. The parliament offers a 360-degree virtual tour of the building on its website, useful for seeing the chambers without an appointment. For actual entry, contact the Burgenländischer Landtag in advance.

The assembly hall's wall painting, 'Begrüßung des heimgekehrten Burgenlandes' by Ferdinand Kitt, was destroyed in 1945. A bust of Federal President Karl Renner by Gustinus Ambrosi stands in the building, and the north annex added in 1970–1973 houses the Burgenland Provincial Archives.