Holy Cross Church, Rostov-na-Donu, Armenian church in Rostov-na-Donu, Russia.

Surp Khach Church is a rectangular stone building in the classicism style, with small projections in the middle of its walls and an eastern apse. Its walls and drum are divided by pilasters and cornices, and porticoes are key elements of the composition. The two-tier bell tower with a tall four-sided spire, built in 1862, was lost in the 20th century.

Armenian settlers from Crimea built this stone structure between 1786 and 1792, making it the oldest building still standing in modern Rostov-on-Don. This construction marked the beginning of a lasting Armenian presence in the region.

The church is named after the Crimean monastery of Surp Khach, which the settlers from Crimea took as their model. The monastery's two-storey bishop's house held a school founded in 1791, later a seminary, and the first printing house in southern Russia, which issued more than 20 books between 1790 and 1796. Armenian poets Harutyun Alamdaryan, Mikael Nalbandian and Raphael Patkanian are buried at the church walls.

The church faces south from a high bank above the upper of two reservoirs in the Kamyshevakha gully. A stone stair descends from the hill toward the Temernik River. The spring, with its bathing pool, lies east of this stair, below the hill; the 1862 Chorkhakh springhouse stands east of the church.

The grounds hold a 6th-century khachkar, a carved stone brought by Armenian settlers from Crimea. This ancient stone is a rare example of Armenian craftsmanship and is carefully preserved on site.