Church of Aghios Andreas or Cathedral of Saint Andrew is a Greek Orthodox basilica in the west side of the city center of Patras in Greece. It is dedicated to the First-called Apostle of Christ, Saint Andrew.Construction of the Greek Byzantine-style church began in 1908 under the supervision of the architect Anastasios Metaxas, followed by Georgios Nomikos. It was inaugurated 66 years later, in 1974.