Koerich (Luxembourgish: Käerch) is a commune and village in western Luxembourg. It is part of the canton of Capellen, which is part of the district of Luxembourg. As of 2009, the commune of Koerich has a population of 2,310. The other small communities in the commune are Goeblange, Goetzingen and Windhof. With its onion-towered church standing above the ruins of the medieval castle, Koerich has a particularly attractive rural setting although it is only 15 km west of Luxembourg City.