Holy Trinity Church, Eastern Orthodox church in Tomsk, Russia.

The Holy Trinity Church is an Orthodox church in Tomsk built in 1841–1844 to a design by provincial architect Karl Tursky. A north chapel dedicated to Saint Charalambos was added in 1858, and a south chapel to Saint Demetrius of Thessaloniki in 1876–1887. The bell tower cross, restored after 1945, was finished with mirrors in place of gold.

Built between 1841 and 1844 to a design by provincial architect Karl Tursky, the church was funded by Tomsk's Old Believer community, with merchant P. I. Pozdeev as its main donor. A north chapel of St. Charalambos was added in 1858, and a south chapel of St. Demetrius of Thessaloniki in 1876–1887. Services effectively ceased on 27 September 1937 by decision of the city soviet, though the Novosibirsk regional committee's closure order arrived only on 8 February 1940. Reopened on 29 December 1945, it was reconsecrated on 15 February 1946.

The church functions as an active place of Orthodox worship where locals gather for services and religious observances. You can observe how the community uses the space and maintains traditions that shape their spiritual life.

You can admire the building from the outside and view the brick architecture from multiple angles. Keep in mind it functions as an active place of worship, so behave respectfully especially during religious services.

The cross on the bell tower is not gilded: lacking gold after the war, restorers faced it with mirrors, and these survive today. The church also keeps the grave monument of the Tomsk entrepreneur and patron Ye. I. Korolyov on its grounds.