The Church of St. John the Merciful is a historic Orthodox church located in Cairo, Egypt. It is dedicated to Saint John the Merciful, a 7th-century patriarch known for his compassion and generosity towards the poor. The church features beautiful Byzantine architecture and serves as a place of worship and community gathering for local Orthodox Christians. The church is part of the Coptic Orthodox Church, which is one of the oldest Christian denominations in the world. It plays a significant role in preserving the religious and cultural heritage of the Coptic community in Egypt. Visitors often admire its intricate iconography and serene atmosphere.