Weidenau is a suburban part (Stadtteil) of the city Siegen in Germany.
Weidenau, a northern part of Siegen, shares borders with Niedersetzen in the north, Geisweid in the north-west, the central part of Siegen in the south, Birlenbach in the west, Bürbach in the south-east and Dreis-Tiefenbach, a part of the city of Netphen in the north-east.
The University of Siegen is located in Weidenau.
Weidenau, formerly belonging to the Amt Weidenau till 1966 and afterwards to the city of Hüttental is a part of Siegen since 1. January 1975.
At the end of 2010 Weidenau had a population of 15.064 inhabitants.
Development of Population:
Coordinates: 50°54′N 8°02′E / 50.900°N 8.033°E