The Orthodox Church in Italy (Italian: Chiesa Ortodossa in Italia) is an effort to establish a national Orthodox church in Italy, bringing all the Orthodox parishes and missions under an Italian metropolitan bishop, but only some independent groups have adhered to it. This jurisdiction is registered before the Italian authorities both as Orthodox Church in Italy and Old Catholic Church in Italy.
The church was founded in 1983 as a traditional Old Catholic church by Italian Orthodox bishop Antonio De Rosso, a former Roman Catholic priest, who became bishop of Apria and Lazio under the jurisdiction of Metropolitan Kyprianos Koutsoumpas, of the Orthodox Church of Greece (Holy Synod in Resistance). In 1993, the church joined the Bulgarian Orthodox Church and in 1995, [clarify]
After 1997, the church remained linked with Patriarch Pimen Enew's Bulgarian Orthodox Church - Alternative synod [clarify] During that year, the church was recognized as an autonomous church and De Rosso became a full member of the Bulgarian alternative synod.[contradictory] De Rosso sought fellowship with Greek Old Calendarists and the Bulgarian alternative synod.[contradictory] The Orthodox Church in Italy was in full communion with the Bulgarian alternative synod, the Ukrainian Orthodox Church - Kiev Patriarchate and some small churches.
After De Rosso died in 2009, the church became an association in memory of him, Associazione "Metropolita Antonio".
Since 2013 the church adopted the alternative name Old Catholic Church in Italy (NCC-COI) and is a vicariate of the Nordic Catholic Church (NCC) since 2015 . The NCC is a member church of the Union of Scranton.,