Holy Trinity Monastery, Orthodox monastery in Tyumen, Russia.

Holy Trinity Monastery is an Orthodox monastery in Tyumen surrounded by a kremlin-style fortified wall with a gate tower at its entrance. Inside the complex, the Troitsky Church with golden domes stands beside the Peter and Paul Church.

Hermit Nifont from the Raifa monastery near Kazan founded the monastery in 1616 with donations from locals; it was then called the Transfiguration Monastery and had no church. A wooden Transfiguration church followed in 1622, and Tsar Mikhail Fyodorovich granted the monks a salary and two fishing grounds that January. After a fire destroyed the church in 1705, Metropolitan Filofey Leshchinsky obtained permission from Peter I, and a stone church was built in 1708–1715 and consecrated as the Trinity Church on 3 June 1715, which gave the monastery its name. Closed in 1923, it was revived in 1995.

The monastery's name changed with its main church: until 1715 it was the Transfiguration Monastery, then took the name Trinity after the church consecrated on 3 June 1715. Its founder was the hermit Nifont from the Raifa monastery near Kazan, who built it in 1616 with donations from local people. In 1761 a Latin school was opened at the monastery.

The monastery stands at Kommunisticheskaya Street 10, on the high Zatyumensky cape above the floodplains of the Babaryinka, Tura and Tyumenka rivers, near the former Yamskaya Sloboda. The entrance gate with a dark roof opens through the long white wall with recessed panels. The site lies at the edge of the historic centre, west of the Tura, in the Kalinina district.

The monastery's bell tower and churches were photographed in 1912 by Sergei Prokudin-Gorsky, who used a special camera to produce some of the world's earliest color images. His collection, now at the Library of Congress, includes views of Tyumen taken during his journey along the Trans-Siberian Railway.