Lörzweiler is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Mainz-Bingen district in Rhineland-Palatinate, Germany.

The winegrowing centre of roughly 2,300 inhabitants distinguishes itself in particular with its winegrowing areas of Mainzer St. Alban and Niersteiner Gutes Domtal with their vineyards Ölgild, Königstuhl and Hohberg.

In the municipal area's south stands the 175 m-high Königstuhl, upon which on 8 September 1024 Conrad II was reportedly elected.

The council is made up of 17 council members, counting the part-time mayor, with seats apportioned thus: (as at municipal election held on 13 June 2004) The municipality's arms might be described thus: Argent a limetree seedling eradicated sable leafed of five veined vert.

In the autobiographical novel Der Lügner (“The Liar”), Ewald Gauer describes, in many small diverting episodes, how he spent his childhood in Lörzweiler in the 1960s.