Bad Pyrmont is a town in the district of Hamelin-Pyrmont, in Lower Saxony, Germany, with a population close to 19,000. It is located on the river Emmer, about 10 km west of the Weser. Bad Pyrmont is a popular spa resort that gained its reputation as a fashionable place for princely vacations in the 17th and 18th centuries. The town is also the center of the Religious Society of Friends in Germany.