The Archdiocesan Archives in Ljubljana is an institution that preserves church records. It was established in 1911. The first archivist was Franc Pokorn. Its role during the communist period was to preserve the archival records of the Ljubljana (arch)diocese. Its activities were critical to preservation of church records, especially the personal collections of the archbishops. 

Its staff was loyal to the Catholic Church and since the Church was discriminated against and persecuted, they felt a certain reserve toward the regime. The staff was mix of clergy and lay people. They were dedicated to their mission, to preserve the church’s archival records. Their activity is still important after the fall of communism, because they systemized and made the collections available to the public. 

The role of the Archdiocesan Archives was crucial in maintaining collections vitali to the history of the church and its activities in the territory of the Ljubljana Archdiocese as well as providing help to parish archives in the territory of the archdiocese as well as other Slovenian regions.