The Roman Catholic Archdiocese of Belgrade (Latin: Archidioecesis Belogradensis; Serbo-Croatian: Beogradska nadbiskupija; Slovene: Beograjska nadškofija; Hungarian: Belgrádi főegyházmegye) is an archdiocese located in the city of Belgrade in Serbia.

State authorities implemented complex religious policies towards various Christian communities, by recognizing the Serbian Orthodox Metropolitanate of Belgrade, and also establishing the Roman Catholic Diocese of Belgrade.

After the loss of Belgrade to the Ottomans in 1739, many Catholics left the region, and the Diocese was returned to the state of provisional administration, that would continue up to the beginning of the 20th century.

[2][3] In order to regulate the status of the local Catholic Church, the government of the Kingdom of Serbia concluded an official Concordat with the Holy See on 24 June 1914.

By the Second Article of the Concordat, it was decided that a regular Catholic Archdiocese of Belgrade should be created.