Niederkassel (Ripuarian: Neddekaaßel) is a town in the Rhein-Sieg district, in North Rhine-Westphalia, Germany, with a population of around 37,000 people.

It is situated on the right bank of the Rhine, approx.

Niederkassel is subdivided into seven quarters (from the south to the north): Mondorf, Rheidt, Niederkassel, Uckendorf, Stockem, Lülsdorf and Ranzel.

People can walk next to the river Rhine in Lülsdorf, Niederkassel and Rheidt.

This Rhein-Sieg-Kreis location article is a stub.