Badersdorf is a municipality in the Austrian state of Burgenland. It lies in the district of Oberwart, in the country's easternmost region.
As a municipality, Badersdorf is one of the smallest administrative units in the district, with a population of only a few hundred residents. Burgenland itself is known for its rural character, and settlements like Badersdorf are typical of the region's small villages and agricultural communities.
The village is situated in the hilly landscape of southern Burgenland, an area that borders Hungary to the east. The surrounding district of Oberwart is the largest in Burgenland by area and includes a mix of German-speaking and Croatian-speaking communities, reflecting the region's historical diversity within the former Austro-Hungarian Empire.