Paul Gerhardt church, Church building in Beiertheim district, Karlsruhe, Germany

The Stephanienbad, now the Paul-Gerhardt-Kirche, is a classical building by Friedrich Weinbrenner in Beiertheim. Its light beige facade has reddish-brown horizontal bands and pilasters, a triangular gable with a round radiating window, and three large white-mullioned windows above a balcony with a thin black metal railing. At balcony level are five openings: two blue-shuttered windows, a glazed double door, and two more blue-shuttered windows; below, a plain beige base wall holds an arched opening.

Friedrich Weinbrenner constructed this building between 1811 and 1817, naming it after Grand Duchess Stephanie de Beauharnais of Baden. It was built as a modern venue for public bathing and entertainment during that period.

Since 1957 the former bathhouse has served the Protestant Paul-Gerhardt-Gemeinde as its church, renamed Paul-Gerhardt-Kirche after the Saxon theologian and hymn writer Paul Gerhardt. The congregation had already rented the social building for regular events from 1926. In the left aisle stands a 2004 organ by Waldkircher Orgelbau Jäger & Brommer, its pipework enclosed in a 650 kg glass swell box.

The former bathhouse stands in Beiertheim, in southern Karlsruhe, near the altered course of the Alb. It serves as the Paul-Gerhardt-Kirche, so visits depend on the Protestant congregation's service times rather than on fixed tourist hours. The 2004 organ with its 650 kg glass swell box sits in the left aisle.

During World War I, student associations secretly held forbidden fencing matches inside this building. This hidden activity made the site known beyond Karlsruhe and gave it an unexpected place in regional student history.