Laßnitz, Lassnitz or Lasnitz, may refer to:
Places in Austria Laßnitz bei Murau (Steirisch Laßnitz), a municipality in Styria Laßnitz (Frauental), a cadastral municipality in Frauental an der Laßnitz, Styria Laßnitz (Ligist), a settlement in Ligist, Styria Laßnitz (Metnitz), a village on the Laßnitzbach stream in the municipality of Metnitz, Carinthia
Historical places Tragöß-Oberort, near Bruck an der Mur in Styria, Austria, until the 19th century Frauental an der Laßnitz, Styria, Austria, until the mid-20th century Laznica (Maribor), village near Maribor, Slovenia Laznica (Braničevo), village in the district of Braničevo, Serbia
Rivers in Austria, also called Laßnitzbach, Laßnitz-Bach, Lasnitzen(-bach) Rettenbach (Laßnitz), also called the Niedere Laßnitz, West Styria Wildbach (Laßnitz), formerly called the Hohe Laßnitz, in West Styria Lassnitz (Kainach), in the district of Voitsberg in West Styria Lassnitzbach (Mur), in the district of Murau in the Styria and a boundary river of the district of Sankt Veit an der Glan in Carinthia Laßnitz (Rabnitz), in East Styria Laßnitz (Sulm) (upper course of the Niedere Laßnitz), in West Styria Lasnitzen, in the municipality of Prägraten am Großvenediger in the district of Lienz in East Tyrol
See also Laznica, Lößnitz, Loznica (disambiguation)