The Chiesa Ortodossa in Italia ("Orthodox Church in Italy") is an effort to establish a national Orthodox church in Italy. It was originally a part of the Holy Synod in Resistance, but then joined Patriarch Pimen's Alternative Synod of the Bulgarian Orthodox Church and adopted the Revised Julian Calendar. It is currently out of communion with the mainstream Orthodox Church. It is not to be confused with the Greek Orthodox Archdiocese of Italy, the primary presence of mainstream Orthodoxy in Italy.