Holy Trinity church in Hierviaty, Catholic church in Hyervyaty, Belarus

The Church of the Holy Trinity in Hierviaty is a red-brick Gothic Revival church with pale stone trim, a tall main facade, and a slender dark-grey spire with pinnacles and a cross rising from a square front tower. It has a steep red-tiled roof, rows of pointed windows, stepped buttresses, and a lower rounded apse at the far end.

A first wooden church and parish are linked to 1526; a new wooden church was consecrated in 1625 after a 1621 foundation by Bishop Eustachy Wołłowicz, and fire damaged it in 1736. The present brick church was built from 1899 to 1903 to designs by Vilnius provincial architect Aleksey Polozov, with construction led by Wacław Michniewicz and later Ignaty Olshansky. It was consecrated on 8 September 1904.

The parish's language disputes shaped its modern life: services in Lithuanian were permitted in 1914, and in 1921–1928 parishioners petitioned Polish authorities to keep them, while the priest Ambrosijus Jakavonis was arrested in 1921 and 1927. Since 1927 Lithuanian Mass has been held once a month. In front of the church stand carved wooden crosses, a feature typical of Lithuanian churches.

The church stands in Hierviaty, Grodno Region, with its main facade and 61-metre spire facing the approach. The surrounding landscape park, containing rare plants and figures of the apostles, is walkable; several carved wooden crosses stand in front of the temple. Grounds are open during daylight; worship times are set separately.

The story that thousands of eggs were bought from local farmers to strengthen the lime mortar is told in tourist publications and regional press, but some of those same texts label it a local legend. The church's 61-metre height makes it one of the tallest in Belarus.