The Church of Saint Equal-to-the-Apostles Princess Olga, a parish church of the Prague Diocese of the Orthodox Church of the Czech Lands and Slovakia, is located in the town of Františkovy Lázně in the Czech Republic. The church belongs to the Cheb deanery, and its rector is Archpriest Jan Krivka.

In 1880, a temporary church was established in Franzensbad for visitors from Russia, where services were held in the summer. Initially, the church was located in a rented part of the colonnade of Salzquelle, and from 1881, in the hall of the "Gisela" hotel.

The modern church was built according to the design of Gustav Widermann with funds raised by Russians coming for treatment. The foundation stone was laid in 1881 by the Franzensbad committee without the participation of Archpriest V. S. Ladinsky, who conducted the consecration only on July 13 (25), 1888. Following the advice of K. P. Pobedonostsev, the ceremony was held discreetly to avoid displeasing the Catholics. The consecration of the church took place on June 25 (July 7), 1889.

The church and a plot of land of about 13.66 ares were registered in the name of the Committee, which considered them its property and did not report to the clergy. In 1899, the church underwent cosmetic repairs, and in 1901, it was surrounded by a stone fence with an iron grille.

In 1900, the church, previously managed by the Committee, which often conflicted with the clergy, was transferred to the community. From 1880 to 1907, the church was attached to the Weimar church, and from 1911, to Dresden.

During World War I, the church was closed. In the 1920s-1930s, it was under the jurisdiction of the Administrator of Russian parishes in Western Europe of the Russian Orthodox Church, and services were held only in the summer.

With the transition of Metropolitan Eulogius (Georgievsky) to the Patriarchate of Constantinople, the church became part of the Western European Exarchate of Russian parishes. On May 5, 1939, the parish along with its property was transferred to the Berlin and German Diocese of the Russian Orthodox Church Abroad and was attached to the Mariensbad church.

A part of the SS stationed in Franzensbad planned to use the church building as a warehouse, but this was opposed by the mayor and Metropolitan Seraphim (Lyade). In 1944, about ten bishops lived in Franzensbad, who often served in the church.

In the summer of 1945, services in the church were resumed. The church passed to the Western European Exarchate of the Russian Orthodox Church, and from 1946, to the Czechoslovak Exarchate. With the granting of autocephaly in 1951 to the Czechoslovak Orthodox Church, the church came under its jurisdiction.