The Umm Leisun inscription is an Old Georgian limestone tombstone slab. It has a five-line inscription written in the Georgian Asomtavruli script and was discovered in 2002, after the renewal of 1996 excavation at a Georgian monastery of the Byzantine period, in the neighborhood of Umm Leisun, in the southern part of Sur Baher, 4.5 km southeast of the Old City of Jerusalem. It was found in a burial crypt under the polychrome mosaic floor.