Bad Waltersdorf is a market town in the district of Hartberg-Fürstenfeld, Styria, Austria. Known for its thermal springs and landscapes, it is a health and wellness destination in the Thermenland Styria region.

The discovery of thermal springs in 1975 led to the transformation of Bad Waltersdorf into a spa destination. The development was supported by local leadership and investments in wellness tourism.

Bad Waltersdorf's name reflects its status as a spa town. Previously called "Waltersdorf in der Oststeiermark", the market town was officially renamed "Bad Waltersdorf" by a decree of the Styrian provincial government on October 11, 1988. This renaming formalized its designation as a spa destination. Alongside the renaming, the town underwent significant renovations, including the replacement of old whip lights with modern lanterns and the transformation of asphalt surfaces into natural stone pavements in the town center.

As part of the Steiermärkische Gemeindestrukturreform, Bad Waltersdorf merged with Sebersdorf in 2015. The reform also incorporated Limbach bei Neudau into the municipality.

Bad Waltersdorf is located approximately 50 kilometers east of Graz, the capital of Styria. It is served by several major roads and public transportation.

The area's natural features include:

• Thermal springs: The thermal waters of Bad Waltersdorf are known for their therapeutic properties and form the backbone of the town’s economy.
• Landscapes: The surrounding area features vineyards, historic sites, and a rural environment, attracting tourists seeking both relaxation and cultural enrichment.

Situated in the Eastern Styrian Hills, Bad Waltersdorf is surrounded by vineyards and is known for its mild climate and scenery.