Longsdorf

File:marxbiergInLongsdorf2182.jpg

Longsdorf ({{langx|lb|Longsdref}}) is a village in the commune of Tandel, Luxembourg. It had a population of 104 as of 2024.{{Cite web |url=https://data.public.lu/fr/datasets/registre-national-des-personnes-physiques-rnpp-population-par-localite-population-per-locality/ |title=Registre national des personnes physiques RNPP : Population par localité |date=2024-01-07 |website=data.public.lu}}

The hamlet of Marxbierg (or Marxberg) forms part of the village.