St. Karapet's Church, Rostov-on-Don, Armenian church in Rostov-on-Don, Russia.

St. Karapet's Church combines basilica and cross-in-square forms. Its facades are dominated by arcades: the first tier of the north and south facades has semi-columns with profiled archivolts, and the west and east facades show arcades rising toward the centre. Three entrances—south, west and north—have perspective portals topped with crosses.

The church was built in 1875 from the bequest of noblewoman Akulina Pogosovna Aladjalova and consecrated in 1881 under architect Vasiliy Sazonov's direction. It emerged from the Armenian settlement established in the region and survived as the area changed significantly over time.

The church was founded under the name of John the Baptist, as stipulated in Akulina Aladjalova's bequest, and is now dedicated to Saint Karapet. Its walnut iconostasis is carved in the Ani style, and the walls carry plaster medallions with original frescoes of saints such as Panteleimon, George, Barbara and Stepanos. Aladjalova is buried beneath the south-western wall.

The church stands inside the Armenian (Proletarian) Cemetery by its eastern wall, and its south portal faces the main cemetery gates at the end of 10th Line Street. Access is through the cemetery, so plan the visit for daylight hours.

Akulina Aladjalova, who died in 1871, left her fortune for a stone church dedicated to John the Baptist at the Armenian cemetery, plus a trustees' house, a well and homes for poor homeless Armenian families. She was buried under the church's south-western wall. The church was consecrated on 11 July 1881.