Bad Ems is a town located in the state of Rhineland-Palatinate, Germany. It serves as the administrative seat of the Rhein-Lahn rural district and currently has a population of approximately 9,000 inhabitants.
The town is primarily known for its status as a spa situated on the river Lahn. Historically, it served as the seat of the Bad Ems collective municipality, which has since been merged into the Bad Ems-Nassau collective municipality.