Ascension Church, Ulan-Ude, Orthodox church in Ulan-Ude, Russia.

The Ascension Church is a stone Orthodox church in Ulan-Ude's Za Udinskaya Sloboda district, originally built in 1789 on the right bank of the Uda River as the Church of Saints Peter and Paul. Moved in 1809 to the left bank, it was reconsecrated: the lower side altar to Archangel Michael in 1811 and the main upper altar to the Ascension in 1816. After a 2010 reconstruction, its new appearance was styled on Kievan architecture.

The first church, dedicated to Saints Peter and Paul, was built in 1789 on the right bank of the Uda River. By a decree of 1806 it was moved in 1809 to the Za Udinskaya sloboda cemetery on the left bank. The lower side chapel of Archangel Michael was consecrated in 1811 and the main Ascension chapel in 1816. In 1842 parishioners acquired a 22-pood bell. The building was taken by the state on 8 April 1929 and returned to the Russian Orthodox Church by a decree of 4 May 1945; the main chapel was reconsecrated on 4 January 1951.

The church's name comes from its main altar, consecrated to the Ascension in 1816; the lower side altar had been dedicated to Archangel Michael in 1811. Until 28 December 1991, when services began at the Holy Trinity Church, it was the only working Orthodox church in all of Buryatia. In 2004 Metropolitan Kirill changed the course of his official visit to see it after learning this.

The church stands in the Zaudinskaya Sloboda area of Ulan-Ude's Oktyabrsky district, on the left bank of the Uda river, not on Lenina Street. It is reached from the city centre by crossing the Uda. The southern side chapel of St Innocent of Irkutsk, added in the early 1980s, is the most recent part of the building.

For decades until 28 December 1991, when services began at the Holy Trinity Church, this was the only working Orthodox church in all of Buryatia. In 2004 Metropolitan Kirill changed the course of an official visit after learning of this, and came to see the church himself.