The Patriarchate of Karlovci () or Serbian Patriarchate of Sremski Karlovci (), was a patriarchate of the Eastern Orthodox Church that existed between 1848 and 1920. It was formed when the Metropolitanate of Karlovci was elevated to the rank of patriarchate.Paul Robert Magocsi: Historical Atlas of Central Europe, University of Toronto Press, 2002 "Then, in 1766, when the Ottomans abolished Pec, the Karlovci province became an independent body, eventually with six suffragan bishops (Novi Sad, Timișoara, Vrsac, Buda, Pakrac, and Karlovac), known as the Serbian Orthodox Slav Oriental Church, which after 1848 was raised to the status of a patriarchate."Erwin Fahlbusch, Geoffrey William Bromiley (editors): The Encyclopedia of Christianity: J-O Wm. B. Eerdmans Publishing, 2003 page 603In these territories a Serbian church for "Hungarian" Serbs was set up, elevated to the Patriarchate of Sremski Karlovci by Emperor Francis Joseph in 1848 The Patriarchate of Karlovci nominally existed until 1920, when along with several other Eastern Orthodox jurisdictions in the defunct Austro-Hungarian Empire, as well as the Metropolitanate of Cetinje, it was merged with the Metropolitanate of Belgrade to form the united Serbian Orthodox Church.The Balkans and eastern Europe / The Eastern Orthodox Church since World War I, Britannica The seat of the Patriarchate was in Karlovci (today Sremski Karlovci, Serbia).
