The Church of St. Stanislaus the Bishop and Martyr in Niemirow is located in the western corner of the northern frontage of the market square, with its front facing south. The first wooden church was built in Niemirow in 1620, funded by the owner of the estate, Stanisław Niemira. This church burned down in 1775. For 15 years, services were held in a temporary chapel built by Father Piotrowski. The construction of the current church began in 1780, funded by Michał Fryderyk Czartoryski. After his death, the work was continued by his widow, Eleonora Monika Czartoryska, née Waldstein, and the next owner of Niemirow, Prince Adam Czartoryski. The church was probably designed by Jan Samuel Becker, the court architect of the Sapiehas. The church was completed around 1790. A wooden bell tower was built in 1814. As part of the post-uprising repressions, the church was closed in 1866. It was returned to the Catholics in 1905, at which time renovation works were also carried out. During World War I, the church was converted into a field hospital, where the wounded were treated. In 1940-1941, it was closed by the Soviets and devastated. In 1944, the Germans mined the church. It was saved from being blown up by a resident of Niemirow employed as a mining assistant, who single-handedly cleared the temple of mines. In 1958, the fence was covered with roof tiles, the altar and baptismal fonts were repainted. In 1960, the organs devastated by the Soviets were rebuilt. A general renovation of the church building was carried out in 1997-2000. The church was built on a rectangular plan. It consists of a two-bay nave and a narrower single-bay presbytery, separated only in the interior, closed by a straight wall. It is a typical example of the architecture of the late 18th century, a building with a Baroque body and early Classicist decoration. The interior of the temple and pilasters are characteristic of the Baroque. Classicism is represented by a modest pediment, as well as sparse ceilings. The interior of the church was also built in the Classicist-Baroque style. Just above the altar there is a painting with the scene of the Crucifixion of Jesus. The side altars contain paintings: The Resurrection of Peter on the right and the Assumption of the Blessed Virgin Mary on the left. All were placed in Rococo frames.