Jahnsfeld
Jahnsfeld is the name of the following places:
in Poland
- Janowice (formerly Jahnsfeld in the district of Sorau (Lausitz), Lower Silesia ), a village in the Lower Silesian Voivodeship; see Lubsko
- Janowice (formerly Jahnsfeld in the Schroda district, Reichsgau Wartheland ), a village in the Greater Poland Voivodeship; see Środa Wielkopolska
- Jacewo (formerly Jahnsfeld in the district of Hohensalza, Reichsgau Wartheland ), a village in the Greater Poland Voivodeship; see Inowrocław