Hamm (Sieg) is a Verbandsgemeinde ("collective municipality") in the district of Altenkirchen, in Rhineland-Palatinate, Germany.

The Verbandsgemeinde Hamm (Sieg) is located in the northwestern part of the district of Altenkirchen.

It borders the municipalities Windeck and Morsbach in its west and north and the Verbandsgemeinden Altenkirchen and Wissen in its south and east.

The Verbandsgemeinde Hamm (Sieg) consists of the following Ortsgemeinden ("local municipalities"):[3] ¹ seat of the Verbandsgemeinde Development of the population in the region, that is Hamm (Sieg) today:[4] ¹ Census results The council of the Verbandsgemeinde Hamm (Sieg) consists of 28 voluntary members.

In Rot silberner Wellenschrägbalken nach links, belegt mit blaubewehrtem und -gezungtem goldenen Leopard, der in den Pranken ein silbernes Kammrad hält, im Schildfuss silberne Hammer und Schlegel schräggekreuzt.