The Kalter Gang is a river in the Industrieviertel of Lower Austria, south of Vienna.

The Kalter Gang feeds on many groundwater sources in the area of the Mitterndorfer Senke, which are located in the municipal area of Ebreichsdorf right next to the Piesting.

For this reason, the middle and upper reaches of the Piesting have often been erroneously referred to as the Kalter Gang.

'cold stream') and a higher magnesium sulphate content than the Piesting.

[2] An approximately 1 km (0.6 mile) long section of the river near Pellendorf was rehabilitated in early 2019.