|Number of municipalities||21|
|• Total||484.5 km2 (187.1 sq mi)|
(1 January 2016)
|• Density||250/km2 (640/sq mi)|
|Time zone||UTC+01:00 (CET)|
|• Summer (DST)||UTC+02:00 (CEST)|
|NUTS code||AT126, AT127|
Bezirk Wien-Umgebung was a district of the state of Lower Austria in Austria. The district comprised four non-contiguous districts on the outer fringes of Vienna: Klosterneuburg and Gerasdorf to the north of the city, Schwechat to its south-east and Purkersdorf on Vienna's western side.
Suburbs, hamlets and other subdivisions of a municipality are indicated by lower dots.
The district Wien-Umgebung was dissolved in 2017; 13 municipalities in the South East became part of the Bruck an der Leitha District, namely Ebergassing, Fischamend, Gramatneusiedl, Himberg, Klein-Neusiedl, Lanzendorf, Leopoldsdorf, Maria Lanzendorf, Moosbrunn, Rauchenwarth, Schwadorf Schwechat and Zwölfaxing. Six municipalities in the West became part of the Sankt Pölten-Land District, namely Gablitz, Mauerbach, Pressbaum, Purkersdorf, Tullnerbach and Wolfsgraben. Klosterneuburg in the North West became part of the Tulln District and Gerasdorf bei Wien in the North East became part of the Korneuburg District.