The Old Calendarist Romanian Orthodox Church (Romanian: Biserica Ortodoxă de Stil Vechi din România) is an Orthodox Church that uses the old-style Julian calendar. This church was split in 1925 by Metropolitan Glicherie, formerly a member of the Romanian Orthodox Church. The church is in full ecclesiastical communion with similar churches, such as the Orthodox Church of Greece (Holy Synod in Resistance) prior to its merging with another Greek Old Calendarist church and the Old Calendar Bulgarian Orthodox Church.