Bergem (Luxembourgish: Biergem) is a town in the commune of Mondercange, in south-western Luxembourg. As of 2005, the town has a population of 1,474. Nearby at Lameschmillen is the confluence of the Alzette and the Mess. In the Middle Ages it belonged to the de Mercy family, together with the aforementioned mill and the castle at nearby Mittental.

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