Ambara church, Medieval church in Gagra, Georgia

Ambara church is a ruined three-nave basilica near Miusera in Abkhazia, measuring 20 by 15 metres, with a two-storey narthex and an upper gallery on the west facade. Its central nave is separated from the side aisles by solid walls with single doorways, not arcades. The south aisle opens to the outside through a three-arch arcade topped by a pediment.

The Ambara church complex consists of a half-ruined three-nave basilica first built in the 7th–8th century, a stone fence from the Middle Ages, and remains of secular structures dated by scholars to the 8th–10th centuries. The main nave vault bears traces of a Late Medieval reconstruction. Georgia has inscribed the church on its list of cultural heritage.

The church lends its name to a whole architectural subgroup: Hans Buchwald called such buildings 'basilicas with isolated side aisles', and G. N. Chubinashvili termed Ambara a 'three-church basilica'. Georgia has inscribed it on its cultural heritage list and treats it as heritage in the Russian-occupied territories, with no known current condition.

The church lies about 400 m from the Black Sea coast at the mouth of the Ambara stream, 2 km from the settlement of Mysra (Miusera), on the Miusera cape. The complex is half-ruined and the area is reportedly increasingly littered, so expect rough ground and no visitor facilities. Georgia lists the church as heritage in Russian-occupied territory with no known current condition, so check access locally.

The church stands about 400 m from the Black Sea at the mouth of the Ambara stream, roughly 2 km from the settlement of Mysra (Miusera). Its walls are of cut limestone 0.75 m thick, while the apse arches and vaults use porous grey stone set in mortar with small pebbles. The main nave vault rests on corbels rather than the original pilasters, which survive beside the doorways to the side naves.