Wartensteinbahn was a funicular railway in the canton of St. Gallen, Switzerland.

The line led from Bad Ragaz at 520 m to Wartenstein (part of Pfäfers) at 747 m. It was built in 1892 for tourists in the resort Ragaz to access the viewpoint and restaurant at Wartenstein.

[2][1] The funicular was owned and operated by Actien-Gesellschaft Drahtseilbahn Ragaz-Wartenstein.

From 2018 to 2022, the association Förderverein Wartensteinbahn attempted to rebuild the funicular.

The pandemic and a change of ownership of the hotel at the upper station led to the cancellation of the project.