Church of the Assumption in Dziatlava, Catholic church building in Dziatlava, Belarus.

The Church of the Assumption in Dziatlava is a single-nave Baroque church with a semicircular apse and two side sacristies. Its 1751 facade, with tall side towers, gives it the look of Vilnian Baroque. Pilasters reinforce the side walls and apse, between which high arched windows are set.

The church was built between 1624 and 1646 on the market square, replacing an older wooden church, on the initiative of Lew Sapieha. A fire in 1743 destroyed almost all interiors, including the main altar. In 1751 Mikołaj Faustyn Radziwiłł funded a reconstruction by architect A. Osikevich, who added a new main façade. Another fire damaged the roof in 1882, and in 1900 a stone wall with corner towers was built around the grounds.

The church serves the local Catholic community as a place for worship and religious ceremonies today. It represents an important spiritual center for believers in the region.

The church is open to visitors during regular hours when it functions as an active parish. It is advisable to check current service times before visiting, as the building remains in active religious use.

The church is also called the Assumption Church, and both names are correct: in the Catholic Church the Dormition and the Assumption of the Virgin are commemorated in one feast. The 1751 rebuilding by architect A. Osikevich, funded by Prince Mikołaj Faustyn Radziwiłł, gave the building its two tall side towers and the look of Vilnian Baroque.