Cathedral Basilica of St. Demetrius, Sremska Mitrovica

{{About|the Roman Catholic Cathedral in Sremska Mitrovica|the Serbian Orthodox church in Sremska Mitrovica|St. Demetrius Church, Sremska Mitrovica}}

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| name =Cathedral Basilica of St. Demetrius

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| other name = Римокатоличка црква Светог Димитрија

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The Cathedral Basilica of St. Demetrius [http://www.gcatholic.org/churches/europe/1258.htm Cathedral Basilica of St. Demetrius] ({{langx|sr|Римокатоличка црква Светог Димитрија|Rimokatolička crkva Svetog Dimitrija}}) also called Sremska Mitrovica Cathedral is the name given to a Roman Catholic church which is located in the city of Sremska Mitrovica, in the autonomous province of Vojvodina, Serbia.{{Cite web|url=http://www.srijembiskupija.rs/|title=Srijemska Biskupija - Vijesti|website=www.srijembiskupija.rs|access-date=2016-09-07}}{{Cite web|url=http://spomenicikulture.mi.sanu.ac.rs/spomenik.php?id=1249|title=Споменици културе у Србији|website=spomenicikulture.mi.sanu.ac.rs|access-date=2016-09-07}}

The cathedral follows the Roman or Latin rite and is the seat of the Diocese of Srijem (Dioecesis Sirmiensis or Srijemska biskupija) which was created in the fourth century and was restored by Pope Gregory IX in 1229.

The current church was built in 1810 and dedicated on 30 June of that year to Saint Demetrius of Sirmium, who is the patron saint of the city. It was elevated to the status of co-cathedral in 1984, and a minor basilica in 1991. With the restoration of the Diocese of Srijem in 2008, the church was elevated to the status of cathedral.

The cathedral is a single-nave structure built in the Neoclassical style, rectangular in shape with a rounded altar apse. The side façades are articulated with shallow pilasters featuring Doric capitals and windows with segmental arches. On the right side, it has an attached sacristy of irregular cubic shape, while on the left there is a smaller room where the Holy Sepulcher is permanently set up.

The baroque high altar once displayed a painting of Saint Demetrius by Arsa Teodorović, later replaced by the statue still in place. Also on the high altar are statues of Saint Joseph and Saint Mark. The side altars are dedicated to the Our Lady of the Rosary and the Holy Trinity.{{Cite web |date=2017-10-08 |title=Srijemska Mitrovica i župa svetog Dimitrija {{!}} Arhiv tekstova {{!}} Hrvatska Riječ |url=https://web.archive.org/web/20171008031126/http://www.hrvatskarijec.rs/vest/A14945/Srijemska-Mitrovica--i-zupa-svetog-Dimitrija/ |access-date=2025-04-19 |website=web.archive.org}}