Deutsch Jahrndorf (German pronunciation: [ˌdɔʏtʃ ˈjaːɐ̯ndɔʁf]; Hungarian: Németjárfalu, Német-Járfalu, Slovak: Nemecké Jarovce) is a municipality in the district of Neusiedl am See, in the Austrian state of Burgenland.

Deutsch Jahrndorf is the easternmost municipality of Austria, at 17th meridian east, and the easternmost commune of the German Sprachraum since 1945 and the expulsions of the Germans.

With Burgenland, the former Hungarian village passed to the Republic of Austria after World War I.

During the Cold War, or from shortly after World War II until the Revolutions of 1989, Deutsch Jahrndorf was the easternmost community in Central Europe with a Western market economy.

[3] Seats in the municipal assembly (Gemeinderat) as of 2007 elections: Deutsch Jahrndorf is twinned with: