Lorentzweiler (Luxembourgish: Luerenzweiler) is a commune and small town in central Luxembourg, in the canton of Mersch.

It is mostly situated in the Alzette valley, and includes a small portion of the Gréngewald forest.

[1] Other towns within the commune include Asselscheuer, Blaschette, Bofferdange, and Helmdange, Hunsdorf.

The commune is served by Lorentzweiler railway station on CFL Line 10, opened in 1862, which has an RB service linking it to Luxembourg City and Diekirch.

[4] Alongside Walferdange and Steinsel, the commune co-manages PIDAL (Piscine intercommunale de l’Alzette), a swimming pool in Walferdange that includes a spa area, a sauna, a fitness room and a restaurant.