Russian church Bad Kissingen, Eastern Orthodox church in Bad Kissingen, Germany.

The Church of Sergius of Radonezh is a two-part brick building in cream and tan horizontal bands. At right, a large octagonal drum rises to a dark dome topped by a white cross, with a smaller cross on the left bell tower. The main facade has a central arched entrance with dark double doors, flanked by two tall arched windows with shutters; a wide staircase leads up to the doors, bordered by low stone walls. Smaller arched windows sit below the dome and along the side wing.

A first attempt in 1846 by Prince I. L. Golenishchev-Kutuzov to set up a chapel on Ludwigstrasse failed when he fell ill. In 1857 the town offered land for a church ahead of a visit by Alexander II, who returned the deed when he did not come; he stayed in 1864 and 1868. The foundation stone was laid on 20 July 1898 and the church was consecrated on 18 July 1901, built to honour the coronation of Nicholas II.

The church is dedicated to Sergius of Radonezh, and its interior paintings of 1901 by Kiplik, Blaznov and Popov follow the frescoes of Saint Vladimir's Cathedral in Kyiv. A memorial plaque inside recalls that the church was built for the coronation of Nicholas II. Since the mid-1990s the congregation has been made up largely of late resettlers from the former Soviet Union.

The church stands at Salinenstraße 20, north of the town centre, and is reached on foot from the spa district. Services are held mainly in the summer months, with Sunday attendance of roughly 80 to 130 people. The parish hall adjoins the building; the former reading room dates from before the Second World War.

The building holds the protection designation D-6-72-114-89 from Bavarian heritage authorities, underscoring its status as a protected architectural monument. This official recognition reflects the church's importance as both an architectural and cultural landmark in the region.