Arnulf Rainer Museum, Contemporary art museum in Baden, Austria

The Arnulf Rainer Museum occupies the former Frauenbad at Josefsplatz 5, a bathing house rebuilt in 1821 in the French Neoclassical style after the 1812 fire that damaged much of Baden. The architects Lottersberger-Messner-Dumpelnik converted it while leaving the historic structure's substance untouched. A memorial stone laid at the 1821 foundation ceremony by Archduke Anton is set in the foyer.

A chapel called Frauenkirche stood over the spring from 1297; the bath itself is first documented in 1357, when it belonged to Duke Albrecht II. After the 1812 fire damaged the building, Archduke Anton laid the foundation stone on 7 April 1821 and the new bathhouse opened on 11 June 1821; its commemorative stone is in the foyer. Bathing ended in 1973, and the museum opened in September 2009.

The museum bears the name of Austrian artist Arnulf Rainer and showcases his diverse artistic approaches across different mediums. Visitors encounter works that span abstract painting to experimental techniques, revealing how his creative vision evolved over time.

The museum occupies the former Frauenbad at Josefsplatz 5, and the historic building was left untouched in its substance during the conversion, so the original bath rooms remain the exhibition rooms. Exhibitions change at least twice a year, and a programme of readings, concerts, performances and lectures accompanies them. The commemorative stone laid at the 1821 foundation ceremony is set in the foyer.

The spring that fed the bath probably already served the Romans and rose beneath the steps of the high altar of the Frauenkirche, a chapel donated in 1297 by Heinrich von Pottendorf to the Augustinian convent founded in 1285. The bath itself is first documented in 1357, when it belonged to Duke Albrecht II.