Holy Trinity Orthodox Cathedral, Lutsk

The Holy Trinity Orthodox Cathedral in Lutsk, Ukraine, forms part of the Bernardine Monastery and Church. It is located on Theatre Square in the center of the city. The monastery was built in 1721. The church, designed by architect Paweł Giżycki, was completed in 1789.

Removed from ownership of the Bernardine monks in the second half of the 19th century, the complex of buildings was donated to the Eastern Orthodox community of Lutsk. In the 1870s, the church was reconstructed by adding a bell tower above the narthex and a central dome. Nowadays the church is the Holy Trinity Cathedral, belonging to the Ukrainian Orthodox Church.

The former Bernardine monastery is used as a library and for small shops.