Mariahilf is the sixth district of Vienna, with a population of 27,867 (2001) within an area of 1.48 km².
It consists of the five neighbourhoods (historical Vorstädte, i.e. towns): Mariahilf, Gumpendorf, Windmühle, Magdalenengrund and Laimgrube.
More intensive settlement started only after the Second Turkish Siege of Vienna in 1683. The area was of some importance because the road to Schönbrunn Palace led through it.
Gumpendorf was mentioned in 1130 for the first time and developed from a Roman watchtower. It was subject to various feudal lords and was sold to the municipality of Vienna in 1798.
Magdalenengrund was originally known as Im Saugraben an der Wien auf der Gstätten ("In the sow pit on the Wien on the meadow") and consisted only of vineyards. In 1698, some plots were released for construction.
The Laimgrube (clay pit) is probably the oldest part of Mariahilf. It was mentioned in 1291 for the first time, but has existed already since the 11th century. Its name is derived from the clay soil, which was used to produce bricks.
Windmühle (windmill) developed from a feudal holding used by various monastic orders. In 1529 it was destroyed during the First Turkish Siege. Emperor Ferdinand I had the ownerhsip transferred to Johann Francolin, subject to the condition that he should build windmills there. However, he had only one mill built.
On March 6, 1850, the five Vorstädte of Gumpendorf, Mariahilf, Windmühle, Magdalenengrund and Laimgrube became part of Vienna as the Fifth District, Mariahilf. When Wieden was split into two districts in 1861, it became the 6th District. In 1862, some areas north of Mariahilfer Straße were ceded to the 7th District (Neubau).
Mariahilf is home to many of Vienna's gay and lesbian residents and contains a sizable concentration of bars, clubs, restaurants and shops catering to the community, along with the Rosa Lila Villa community center.