Käerjeng (Luxembourgish pronunciation: [ˈkɛːɐ̯ʒeŋ]) is a commune in southwestern Luxembourg, in the canton of Capellen.

[1] With a population of approximately 11,000, Käerjeng is the 10th most-populous commune in Luxembourg.

Käerjeng is located on the dividing line of the waters of the Rhine basin (Eisch) and the watershed of the Meuse (Chiers).

Total area: 52.2 km2 (20.15 sq mi) Käerjeng has an oceanic climate (Köppen Cfb).

This article related to the geography of Capellen canton is a stub.