Holy Trinity Church, Kargapol, Eastern Orthodox church in Kargopol, Russia.

The Holy Trinity Church is an Orthodox church in Kargopol featuring multiple domes and layered structures typical of Russian religious buildings. The structure displays symmetrical proportions and architectural elements designed to reflect Orthodox traditions and northern construction methods.

The church was originally built with five domes, as was customary in Russian tradition. After a fire in 1878, its upper part was rebuilt: the cuboid main volume was covered by a large Byzantine-style dome whose drum is pierced by 16 windows. In the late 1980s the building was transferred to the Kargopol Historical, Architectural and Art Museum-Reserve. It held a temple icon of the local saint Alexander Oshevensky.

The church held a temple icon of the local saint Alexander Oshevensky, whose monastery stands near Kargopol. Since the late 1980s the building has belonged to the Kargopol museum-reserve of history, architecture and art, so it is shown as a museum rather than used as a parish church.

The church stands in the northern part of Kargopol, not the centre, so allow a walk from the historic core to reach it. It is a two-storey building; the main cube rises through three tiers of windows, the upper ones octagonal, under a Byzantine-style dome pierced by 16 windows. Since the late 1980s it has belonged to the Kargopol museum-reserve, so check opening arrangements with the museum before setting out.

The church kept its traditional five-dome silhouette until the 1878 fire; the rebuilding replaced the upper part with a single large Byzantine-style dome whose drum is pierced by 16 windows. The earlier cube, with three tiers of windows, the top ones octagonal, survives below. Since the late 1980s the building has belonged to the Kargopol museum-reserve.