Baden is a spa town and medieval city in Austria, 26 kilometers south of Vienna, with a population of 25,207 (2005). Frequently, the name is given as Baden bei Wien (Baden near Vienna); this name, however, is not official, but can be used to distinguish it from other cities of the same name such as Baden-Baden or Baden, Switzerland. Baden may be reached by the Sudautobahn (A2) and is linked with the Sudbahn rail with a train station and the Badener Bahn.

Baden is situated at the mouth of the romantic Helenental, on the banks of the Schwechat, and used to be the principal summer resort of the wealthy inhabitants of Vienna, the neighbouring capital. Baden possesses a Kurhaus, fifteen bathing-establishments, a parish church in late Gothic style, and a town-hall, which contains archives. The warm baths, which gave name to the town, are thirteen in number, with a temperature of from 22°C (72°F) to 36°C (97°F), and contain, as chief ingredient, sulphate of lime.
Several members of the Austrian Imperial Family had made Baden their summer residence and have built here beautiful villas. Baden possesses several parks and is surrounded by lovely and interesting spots, of which the most frequented is the picturesque valley of the Helenental, which is traversed by the Schwechat. Not far from Baden, the valley is crossed by the magnificent aqueduct of the Vienna waterworks. At the entrance to the valley, on the right bank of the river, lie the ruins of the 12th century castle of Rauheneck. About 4 m. up the valley is Mayerling, a hunting-lodge, where Crown Prince Rudolph of Austria was found dead in 1889. The famous composer Ludwig van Beethoven stayed a number of times in Baden, and many of his residences can still be seen today. Baden offers you spa and tourism activities, such as thermal beach pools, theaters, museums, international horse races, operetta festival in the open-air amphitheater, exhibitions, all year round spa concerts, rich offer of sports and leisure-time activities.